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CVE-2022-48937 (GCVE-0-2022-48937)

Vulnerability from cvelistv5 – Published: 2024-08-22 03:31 – Updated: 2026-05-11 18:50
VLAI
Title
io_uring: add a schedule point in io_add_buffers()
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring: add a schedule point in io_add_buffers() Looping ~65535 times doing kmalloc() calls can trigger soft lockups, especially with DEBUG features (like KASAN). [ 253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575] [ 253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O) [ 253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S O 5.17.0-smp-DEV #801 [ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98) [ 253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40 [ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246 [ 253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001 [ 253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a [ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004 [ 253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380 [ 253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0 [ 253.544483] FS: 00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000 [ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0 [ 253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 253.544494] Call Trace: [ 253.544496] <TASK> [ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143) [ 253.544505] __kernel_text_address (kernel/extable.c:78) [ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19) [ 253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27) [ 253.544517] ? io_queue_sqe (fs/io_uring.c:7143) [ 253.544521] stack_trace_save (kernel/stacktrace.c:123) [ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515) [ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515) [ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524) [ 253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544544] ? __io_queue_sqe (fs/io_uring.c:?) [ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524) [ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546) [ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078) [ 253.544578] ? io_submit_sqes (fs/io_uring.c:7441) [ 253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096) [ 253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096) [ 253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [ 253.544590] ? entry_SYSCALL_64_after_hwframe (??:?) [ 253.544596] __io_queue_sqe (fs/io_uring.c:?) [ 253.544600] io_queue_sqe (fs/io_uring.c:7143) [ 253.544603] io_submit_sqe (fs/io_uring.c:?) [ 253.544608] io_submit_sqes (fs/io_uring.c:?) [ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri ---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:32 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ddf0322db79c5984dc1a1db890f946dd19b7d6d9 , < 4a93c6594613c3429b6f30136fff115c7f803af4 (git)
Affected: ddf0322db79c5984dc1a1db890f946dd19b7d6d9 , < c718ea4e7382e18957ed0e88a5f855e2122d9c00 (git)
Affected: ddf0322db79c5984dc1a1db890f946dd19b7d6d9 , < 8f3cc3c5bc43d03b5748ac4fb8d180084952c36a (git)
Affected: ddf0322db79c5984dc1a1db890f946dd19b7d6d9 , < f240762f88b4b1b58561939ffd44837759756477 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.103 , ≤ 5.10.* (semver)
Unaffected: 5.15.26 , ≤ 5.15.* (semver)
Unaffected: 5.16.12 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                "id": "CVE-2022-48937",
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              "version": "5.15.26",
              "versionType": "semver"
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              "lessThanOrEqual": "5.16.*",
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
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      "cpeApplicability": [
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.15.26",
                  "versionStartIncluding": "5.7",
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                {
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                  "versionEndExcluding": "5.17",
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: add a schedule point in io_add_buffers()\n\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\nespecially with DEBUG features (like KASAN).\n\n[  253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\n[  253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\n[  253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S         O      5.17.0-smp-DEV #801\n[  253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\n[  253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u003c48\u003e c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\n[  253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\n[  253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\n[  253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\n[  253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\n[  253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\n[  253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\n[  253.544483] FS:  00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\n[  253.544486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\n[  253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  253.544494] Call Trace:\n[  253.544496]  \u003cTASK\u003e\n[  253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\n[  253.544505] __kernel_text_address (kernel/extable.c:78)\n[  253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\n[  253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\n[  253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\n[  253.544521] stack_trace_save (kernel/stacktrace.c:123)\n[  253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[  253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[  253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\n[  253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[  253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[  253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\n[  253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\n[  253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[  253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[  253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[  253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[  253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[  253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\n[  253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\n[  253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\n[  253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\n[  253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\n[  253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\n[  253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\n[  253.544596] __io_queue_sqe (fs/io_uring.c:?)\n[  253.544600] io_queue_sqe (fs/io_uring.c:7143)\n[  253.544603] io_submit_sqe (fs/io_uring.c:?)\n[  253.544608] io_submit_sqes (fs/io_uring.c:?)\n[  253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:50:01.685Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4"
        },
        {
          "url": "https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477"
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      "title": "io_uring: add a schedule point in io_add_buffers()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48937",
    "datePublished": "2024-08-22T03:31:32.165Z",
    "dateReserved": "2024-08-22T01:27:53.623Z",
    "dateUpdated": "2026-05-11T18:50:01.685Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-48937",
      "date": "2026-09-15",
      "epss": "0.0016",
      "percentile": "0.05539"
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    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.7\", \"versionEndExcluding\": \"5.10.103\", \"matchCriteriaId\": \"7BF4E57B-2E8D-4F4A-9DD0-A1A61CDDD2B6\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.26\", \"matchCriteriaId\": \"9AB342AE-A62E-4947-A6EA-511453062B2B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"5.16.12\", \"matchCriteriaId\": \"C76BAB21-7F23-4AD8-A25F-CA7B262A2698\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nio_uring: add a schedule point in io_add_buffers()\\n\\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\\nespecially with DEBUG features (like KASAN).\\n\\n[  253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\\n[  253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\\n[  253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S         O      5.17.0-smp-DEV #801\\n[  253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\\n[  253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u003c48\u003e c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\\n[  253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\\n[  253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\\n[  253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\\n[  253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\\n[  253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\\n[  253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\\n[  253.544483] FS:  00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\\n[  253.544486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\\n[  253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  253.544494] Call Trace:\\n[  253.544496]  \u003cTASK\u003e\\n[  253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544505] __kernel_text_address (kernel/extable.c:78)\\n[  253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\\n[  253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\\n[  253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544521] stack_trace_save (kernel/stacktrace.c:123)\\n[  253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\\n[  253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\\n[  253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\\n[  253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\\n[  253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\\n[  253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\\n[  253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\\n[  253.544596] __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544600] io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544603] io_submit_sqe (fs/io_uring.c:?)\\n[  253.544608] io_submit_sqes (fs/io_uring.c:?)\\n[  253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: io_uring: agregue un punto de programaci\\u00f3n en io_add_buffers() Realizar bucles ~65535 veces al realizar llamadas kmalloc() puede desencadenar bloqueos suaves, especialmente con funciones DEBUG (como KASAN). [253.536212] perro guardi\\u00e1n: ERROR: bloqueo suave - \\u00a1CPU#64 bloqueada durante 26 segundos! [b219417889:12575] [253.544433] M\\u00f3dulos vinculados en: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O) [253.544451] CPU: 64 PID: 12575 Comm: 417889 Contaminado: GSO 5.17.0-smp-DEV #801 [ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98) [ 253.544464] C\\u00f3digo: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u0026lt;48\u0026gt; c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40 [ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246 [ 253.544471] RAX: 1ffff1105b1 75e00 RBX: fffffffa13ef09a RCX: 00000000a13ef001 [ 253.544474] RDX: fffffffa13ef09a RSI: ffff8882d8baf558 RDI: fffffffa13ef09a [ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 00000000000000004 [ 253.544479] R10: ffff8882d8baf5e8 R11: 0d59a50 R12: ffff8882eab20380 [ 253.544481] R13: fffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0 [ 253.544483] FS: 00000000016d3380( 0000) GS: ffff88af48c00000(0000) knlGS:00000000000000000 [ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 253.544488] CR2: af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0 [ 253.544491] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 253.544 492] DR3 : 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 253.544494] Seguimiento de llamadas: [ 253.544496]  [ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143) [ 253.544505] __kernel_text_address (kernel/extable.c:78) [ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19) [ 253.544514] arch_stack_walk (arch/ x86/n\\u00facleo /stacktrace.c:27) [253.544517]? io_queue_sqe (fs/io_uring.c:7143) [ 253.544521] stack_trace_save (kernel/stacktrace.c:123) [ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/ common.c:436 mm/kasan/common.c:515) [ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515) [ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524) [253.544535]? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [253.544544]? __io_queue_sqe (fs/io_uring.c:?) [ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524) [ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828 ) [253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546) [ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078) [253.544578]? io_submit_sqes (fs/io_uring.c:7441) [253.544581]? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096) [253.544584]? __x64_sys_io_uring_enter (fs/io_uring.c:10096) [253.544587]? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [253.544590]? entrada_SYSCALL_64_after_hwframe (??:?) [ 253.544596] __io_queue_sqe (fs/io_uring.c:?) [ 253.544600] io_queue_sqe (fs/io_uring.c:7143) [ 253.544603] io_submit_sqe (fs/io_uring.c :?) [ 253.544608] io_submit_sqes (fs/io_uring.c:?) [ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri ---truncado---\"}]",
      "id": "CVE-2022-48937",
      "lastModified": "2024-08-22T19:07:28.567",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 3.3, \"baseSeverity\": \"LOW\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 1.4}]}",
      "published": "2024-08-22T04:15:17.137",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-667\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48937\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-22T04:15:17.137\",\"lastModified\":\"2026-06-17T05:16:39.587\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nio_uring: add a schedule point in io_add_buffers()\\n\\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\\nespecially with DEBUG features (like KASAN).\\n\\n[  253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\\n[  253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\\n[  253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S         O      5.17.0-smp-DEV #801\\n[  253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\\n[  253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u003c48\u003e c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\\n[  253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\\n[  253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\\n[  253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\\n[  253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\\n[  253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\\n[  253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\\n[  253.544483] FS:  00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\\n[  253.544486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\\n[  253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  253.544494] Call Trace:\\n[  253.544496]  \u003cTASK\u003e\\n[  253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544505] __kernel_text_address (kernel/extable.c:78)\\n[  253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\\n[  253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\\n[  253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544521] stack_trace_save (kernel/stacktrace.c:123)\\n[  253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\\n[  253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\\n[  253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\\n[  253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\\n[  253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\\n[  253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\\n[  253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\\n[  253.544596] __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544600] io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544603] io_submit_sqe (fs/io_uring.c:?)\\n[  253.544608] io_submit_sqes (fs/io_uring.c:?)\\n[  253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: io_uring: agregue un punto de programaci\u00f3n en io_add_buffers() Realizar bucles ~65535 veces al realizar llamadas kmalloc() puede desencadenar bloqueos suaves, especialmente con funciones DEBUG (como KASAN). [253.536212] perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU#64 bloqueada durante 26 segundos! [b219417889:12575] [253.544433] M\u00f3dulos vinculados en: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O) [253.544451] CPU: 64 PID: 12575 Comm: 417889 Contaminado: GSO 5.17.0-smp-DEV #801 [ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98) [ 253.544464] C\u00f3digo: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u0026lt;48\u0026gt; c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40 [ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246 [ 253.544471] RAX: 1ffff1105b1 75e00 RBX: fffffffa13ef09a RCX: 00000000a13ef001 [ 253.544474] RDX: fffffffa13ef09a RSI: ffff8882d8baf558 RDI: fffffffa13ef09a [ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 00000000000000004 [ 253.544479] R10: ffff8882d8baf5e8 R11: 0d59a50 R12: ffff8882eab20380 [ 253.544481] R13: fffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0 [ 253.544483] FS: 00000000016d3380( 0000) GS: ffff88af48c00000(0000) knlGS:00000000000000000 [ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 253.544488] CR2: af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0 [ 253.544491] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 253.544 492] DR3 : 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 253.544494] Seguimiento de llamadas: [ 253.544496]  [ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143) [ 253.544505] __kernel_text_address (kernel/extable.c:78) [ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19) [ 253.544514] arch_stack_walk (arch/ x86/n\u00facleo /stacktrace.c:27) [253.544517]? io_queue_sqe (fs/io_uring.c:7143) [ 253.544521] stack_trace_save (kernel/stacktrace.c:123) [ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/ common.c:436 mm/kasan/common.c:515) [ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515) [ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524) [253.544535]? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [253.544544]? __io_queue_sqe (fs/io_uring.c:?) [ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524) [ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828 ) [253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546) [ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078) [253.544578]? io_submit_sqes (fs/io_uring.c:7441) [253.544581]? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096) [253.544584]? __x64_sys_io_uring_enter (fs/io_uring.c:10096) [253.544587]? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [253.544590]? entrada_SYSCALL_64_after_hwframe (??:?) [ 253.544596] __io_queue_sqe (fs/io_uring.c:?) [ 253.544600] io_queue_sqe (fs/io_uring.c:7143) [ 253.544603] io_submit_sqe (fs/io_uring.c :?) [ 253.544608] io_submit_sqes (fs/io_uring.c:?) [ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/io_uring.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\",\"lessThan\":\"4a93c6594613c3429b6f30136fff115c7f803af4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\",\"lessThan\":\"c718ea4e7382e18957ed0e88a5f855e2122d9c00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\",\"lessThan\":\"8f3cc3c5bc43d03b5748ac4fb8d180084952c36a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\",\"lessThan\":\"f240762f88b4b1b58561939ffd44837759756477\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/io_uring.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.103\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.26\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.16.12\",\"lessThanOrEqual\":\"5.16.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.17\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.3,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T15:32:30.798795Z\",\"id\":\"CVE-2022-48937\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7\",\"versionEndExcluding\":\"5.10.103\",\"matchCriteriaId\":\"7BF4E57B-2E8D-4F4A-9DD0-A1A61CDDD2B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.26\",\"matchCriteriaId\":\"9AB342AE-A62E-4947-A6EA-511453062B2B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.12\",\"matchCriteriaId\":\"C76BAB21-7F23-4AD8-A25F-CA7B262A2698\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:33:46+00:00",
      "cve": "CVE-2022-48937",
      "id": "CVE-2022-48937",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: io_uring: add a schedule point in io_add_buffers()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48937.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:29:04Z",
      "cve": "CVE-2022-48937",
      "id": "CVE-2022-48937",
      "initial_release_date": "2024-08-23T02:53:25Z",
      "product_status:known_affected": "310",
      "product_status:known_not_affected": "250",
      "product_status:recommended": "411",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-48937",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-48937.json",
      "version": "48"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48937\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:32:30.798795Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:15.519Z\"}}], \"cna\": {\"title\": \"io_uring: add a schedule point in io_add_buffers()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\", \"lessThan\": \"4a93c6594613c3429b6f30136fff115c7f803af4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\", \"lessThan\": \"c718ea4e7382e18957ed0e88a5f855e2122d9c00\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\", \"lessThan\": \"8f3cc3c5bc43d03b5748ac4fb8d180084952c36a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ddf0322db79c5984dc1a1db890f946dd19b7d6d9\", \"lessThan\": \"f240762f88b4b1b58561939ffd44837759756477\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/io_uring.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.103\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.26\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/io_uring.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4\"}, {\"url\": \"https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00\"}, {\"url\": \"https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a\"}, {\"url\": \"https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nio_uring: add a schedule point in io_add_buffers()\\n\\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\\nespecially with DEBUG features (like KASAN).\\n\\n[  253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\\n[  253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\\n[  253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S         O      5.17.0-smp-DEV #801\\n[  253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\\n[  253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb \u003c48\u003e c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\\n[  253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\\n[  253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\\n[  253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\\n[  253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\\n[  253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\\n[  253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\\n[  253.544483] FS:  00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\\n[  253.544486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\\n[  253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  253.544494] Call Trace:\\n[  253.544496]  \u003cTASK\u003e\\n[  253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544505] __kernel_text_address (kernel/extable.c:78)\\n[  253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\\n[  253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\\n[  253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544521] stack_trace_save (kernel/stacktrace.c:123)\\n[  253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\\n[  253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\\n[  253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\\n[  253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\\n[  253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\\n[  253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\\n[  253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\\n[  253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\\n[  253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\\n[  253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\\n[  253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\\n[  253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\\n[  253.544596] __io_queue_sqe (fs/io_uring.c:?)\\n[  253.544600] io_queue_sqe (fs/io_uring.c:7143)\\n[  253.544603] io_submit_sqe (fs/io_uring.c:?)\\n[  253.544608] io_submit_sqes (fs/io_uring.c:?)\\n[  253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.103\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.26\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.12\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17\", \"versionStartIncluding\": \"5.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:50:01.685Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48937\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:50:01.685Z\", \"dateReserved\": \"2024-08-22T01:27:53.623Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-22T03:31:32.165Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.