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CVE-2025-38323 (GCVE-0-2025-38323)

Vulnerability from cvelistv5 – Published: 2025-07-10 08:14 – Updated: 2026-05-11 21:25
VLAI
Title
net: atm: add lec_mutex
Summary
In the Linux kernel, the following vulnerability has been resolved: net: atm: add lec_mutex syzbot found its way in net/atm/lec.c, and found an error path in lecd_attach() could leave a dangling pointer in dev_lec[]. Add a mutex to protect dev_lecp[] uses from lecd_attach(), lec_vcc_attach() and lec_mcast_attach(). Following patch will use this mutex for /proc/net/atm/lec. BUG: KASAN: slab-use-after-free in lecd_attach net/atm/lec.c:751 [inline] BUG: KASAN: slab-use-after-free in lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008 Read of size 8 at addr ffff88807c7b8e68 by task syz.1.17/6142 CPU: 1 UID: 0 PID: 6142 Comm: syz.1.17 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xcd/0x680 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 lecd_attach net/atm/lec.c:751 [inline] lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f </TASK> Allocated by task 6132: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kvmalloc_node_noprof+0x27b/0x620 mm/slub.c:5015 alloc_netdev_mqs+0xd2/0x1570 net/core/dev.c:11711 lecd_attach net/atm/lec.c:737 [inline] lane_ioctl+0x17db/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 6132: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kfree+0x2b4/0x4d0 mm/slub.c:4842 free_netdev+0x6c5/0x910 net/core/dev.c:11892 lecd_attach net/atm/lec.c:744 [inline] lane_ioctl+0x1ce8/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e91274cc7ed88ab5bdc62d426067c82b0b118a0b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a7a713dfb5f9477345450f27c7c0741864511192 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 17e156a94e94a906a570dbf9b48877956c60bef8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 18e8f0c4f826fb08c2d3825cdd6c57e24b207e0a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dffd03422ae6a459039c8602f410e6c0f4cbc6c8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f4d80b16ecc4229f7e6345158ef34c36be323f0e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64b378db28a967f7b271b055380c2360279aa424 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d13a3824bfd2b4774b671a75cf766a16637a0e67 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.4.295 , ≤ 5.4.* (semver)
Unaffected: 5.10.239 , ≤ 5.10.* (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.95 , ≤ 6.6.* (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atm: add lec_mutex\n\nsyzbot found its way in net/atm/lec.c, and found an error path\nin lecd_attach() could leave a dangling pointer in dev_lec[].\n\nAdd a mutex to protect dev_lecp[] uses from lecd_attach(),\nlec_vcc_attach() and lec_mcast_attach().\n\nFollowing patch will use this mutex for /proc/net/atm/lec.\n\nBUG: KASAN: slab-use-after-free in lecd_attach net/atm/lec.c:751 [inline]\nBUG: KASAN: slab-use-after-free in lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008\nRead of size 8 at addr ffff88807c7b8e68 by task syz.1.17/6142\n\nCPU: 1 UID: 0 PID: 6142 Comm: syz.1.17 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:94 [inline]\n  dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n  print_address_description mm/kasan/report.c:408 [inline]\n  print_report+0xcd/0x680 mm/kasan/report.c:521\n  kasan_report+0xe0/0x110 mm/kasan/report.c:634\n  lecd_attach net/atm/lec.c:751 [inline]\n  lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n \u003c/TASK\u003e\n\nAllocated by task 6132:\n  kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n  kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n  poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n  __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394\n  kasan_kmalloc include/linux/kasan.h:260 [inline]\n  __do_kmalloc_node mm/slub.c:4328 [inline]\n  __kvmalloc_node_noprof+0x27b/0x620 mm/slub.c:5015\n  alloc_netdev_mqs+0xd2/0x1570 net/core/dev.c:11711\n  lecd_attach net/atm/lec.c:737 [inline]\n  lane_ioctl+0x17db/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 6132:\n  kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n  kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n  kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576\n  poison_slab_object mm/kasan/common.c:247 [inline]\n  __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264\n  kasan_slab_free include/linux/kasan.h:233 [inline]\n  slab_free_hook mm/slub.c:2381 [inline]\n  slab_free mm/slub.c:4643 [inline]\n  kfree+0x2b4/0x4d0 mm/slub.c:4842\n  free_netdev+0x6c5/0x910 net/core/dev.c:11892\n  lecd_attach net/atm/lec.c:744 [inline]\n  lane_ioctl+0x1ce8/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:25:45.739Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e91274cc7ed88ab5bdc62d426067c82b0b118a0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a7a713dfb5f9477345450f27c7c0741864511192"
        },
        {
          "url": "https://git.kernel.org/stable/c/17e156a94e94a906a570dbf9b48877956c60bef8"
        },
        {
          "url": "https://git.kernel.org/stable/c/18e8f0c4f826fb08c2d3825cdd6c57e24b207e0a"
        },
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          "url": "https://git.kernel.org/stable/c/dffd03422ae6a459039c8602f410e6c0f4cbc6c8"
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        {
          "url": "https://git.kernel.org/stable/c/f4d80b16ecc4229f7e6345158ef34c36be323f0e"
        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/d13a3824bfd2b4774b671a75cf766a16637a0e67"
        }
      ],
      "title": "net: atm: add lec_mutex",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38323",
    "datePublished": "2025-07-10T08:14:58.212Z",
    "dateReserved": "2025-04-16T04:51:24.004Z",
    "dateUpdated": "2026-05-11T21:25:45.739Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38323",
      "date": "2026-09-19",
      "epss": "0.00187",
      "percentile": "0.086"
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    "microsoft_vex": {
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      "cve": "CVE-2025-38323",
      "id": "msrc_CVE-2025-38323",
      "initial_release_date": "2025-07-02T00:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "2",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "net: atm: add lec_mutex",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-38323.json",
      "version": "2"
    },
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atm: add lec_mutex\n\nsyzbot found its way in net/atm/lec.c, and found an error path\nin lecd_attach() could leave a dangling pointer in dev_lec[].\n\nAdd a mutex to protect dev_lecp[] uses from lecd_attach(),\nlec_vcc_attach() and lec_mcast_attach().\n\nFollowing patch will use this mutex for /proc/net/atm/lec.\n\nBUG: KASAN: slab-use-after-free in lecd_attach net/atm/lec.c:751 [inline]\nBUG: KASAN: slab-use-after-free in lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008\nRead of size 8 at addr ffff88807c7b8e68 by task syz.1.17/6142\n\nCPU: 1 UID: 0 PID: 6142 Comm: syz.1.17 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:94 [inline]\n  dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n  print_address_description mm/kasan/report.c:408 [inline]\n  print_report+0xcd/0x680 mm/kasan/report.c:521\n  kasan_report+0xe0/0x110 mm/kasan/report.c:634\n  lecd_attach net/atm/lec.c:751 [inline]\n  lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n \u003c/TASK\u003e\n\nAllocated by task 6132:\n  kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n  kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n  poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n  __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394\n  kasan_kmalloc include/linux/kasan.h:260 [inline]\n  __do_kmalloc_node mm/slub.c:4328 [inline]\n  __kvmalloc_node_noprof+0x27b/0x620 mm/slub.c:5015\n  alloc_netdev_mqs+0xd2/0x1570 net/core/dev.c:11711\n  lecd_attach net/atm/lec.c:737 [inline]\n  lane_ioctl+0x17db/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 6132:\n  kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n  kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n  kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576\n  poison_slab_object mm/kasan/common.c:247 [inline]\n  __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264\n  kasan_slab_free include/linux/kasan.h:233 [inline]\n  slab_free_hook mm/slub.c:2381 [inline]\n  slab_free mm/slub.c:4643 [inline]\n  kfree+0x2b4/0x4d0 mm/slub.c:4842\n  free_netdev+0x6c5/0x910 net/core/dev.c:11892\n  lecd_attach net/atm/lec.c:744 [inline]\n  lane_ioctl+0x1ce8/0x23e0 net/atm/lec.c:1008\n  do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n  sock_do_ioctl+0x118/0x280 net/socket.c:1190\n  sock_ioctl+0x227/0x6b0 net/socket.c:1311\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl fs/ioctl.c:893 [inline]\n  __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: atm: add lec_mutex. syzbot se filtr\u00f3 a net/atm/lec.c y encontr\u00f3 una ruta de error en lecd_attach() que podr\u00eda dejar un puntero colgando en dev_lec[]. Se agreg\u00f3 un mutex para proteger los usos de dev_lecp[] de lecd_attach(), lec_vcc_attach() y lec_mcast_attach(). El siguiente parche usar\u00e1 este mutex para /proc/net/atm/lec. ERROR: KASAN: slab-use-after-free in lecd_attach net/atm/lec.c:751 [inline] BUG: KASAN: slab-use-after-free in lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008 Read of size 8 at addr ffff88807c7b8e68 by task syz.1.17/6142 CPU: 1 UID: 0 PID: 6142 Comm: syz.1.17 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace:  __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xcd/0x680 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 lecd_attach net/atm/lec.c:751 [inline] lane_ioctl+0x2224/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f  Allocated by task 6132: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kvmalloc_node_noprof+0x27b/0x620 mm/slub.c:5015 alloc_netdev_mqs+0xd2/0x1570 net/core/dev.c:11711 lecd_attach net/atm/lec.c:737 [inline] lane_ioctl+0x17db/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 6132: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kfree+0x2b4/0x4d0 mm/slub.c:4842 free_netdev+0x6c5/0x910 net/core/dev.c:11892 lecd_attach net/atm/lec.c:744 [inline] lane_ioctl+0x1ce8/0x23e0 net/atm/lec.c:1008 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x118/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893 "
          }
        ],
        "id": "CVE-2025-38323",
        "lastModified": "2026-06-17T09:16:37.370",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-07-10T09:15:26.377",
        "references": [
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/17e156a94e94a906a570dbf9b48877956c60bef8"
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T01:03:49+00:00",
      "cve": "CVE-2025-38323",
      "id": "CVE-2025-38323",
      "initial_release_date": "2025-07-10T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: atm: add lec_mutex",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38323.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-12T16:49:17Z",
      "cve": "CVE-2025-38323",
      "id": "CVE-2025-38323",
      "initial_release_date": "2025-07-10T23:22:33Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "465",
      "product_status:known_not_affected": "365",
      "product_status:recommended": "780",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38323",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38323.json",
      "version": "63"
    }
  }
}



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Tags
Taxonomy of the tags.





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.