CVE-2024-43874 (GCVE-0-2024-43874)
Vulnerability from cvelistv5 – Published: 2024-08-21 00:06 – Updated: 2026-05-11 20:31
VLAI
EPSS
VEX
Title
crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked
Fix a null pointer dereference induced by DEBUG_TEST_DRIVER_REMOVE.
Return from __sev_snp_shutdown_locked() if the psp_device or the
sev_device structs are not initialized. Without the fix, the driver will
produce the following splat:
ccp 0000:55:00.5: enabling device (0000 -> 0002)
ccp 0000:55:00.5: sev enabled
ccp 0000:55:00.5: psp enabled
BUG: kernel NULL pointer dereference, address: 00000000000000f0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI
CPU: 262 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc1+ #29
RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 <4c> 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83
RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808
RBP: ffffb2ea4014b7e8 R08: 0000000000000106 R09: 000000000003d9c0
R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8
R13: 0000000000000000 R14: ffffb2ea4014b808 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff9e58b1e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
<TASK>
? __die_body+0x6f/0xb0
? __die+0xcc/0xf0
? page_fault_oops+0x330/0x3a0
? save_trace+0x2a5/0x360
? do_user_addr_fault+0x583/0x630
? exc_page_fault+0x81/0x120
? asm_exc_page_fault+0x2b/0x30
? __sev_snp_shutdown_locked+0x2e/0x150
__sev_firmware_shutdown+0x349/0x5b0
? pm_runtime_barrier+0x66/0xe0
sev_dev_destroy+0x34/0xb0
psp_dev_destroy+0x27/0x60
sp_destroy+0x39/0x90
sp_pci_remove+0x22/0x60
pci_device_remove+0x4e/0x110
really_probe+0x271/0x4e0
__driver_probe_device+0x8f/0x160
driver_probe_device+0x24/0x120
__driver_attach+0xc7/0x280
? driver_attach+0x30/0x30
bus_for_each_dev+0x10d/0x130
driver_attach+0x22/0x30
bus_add_driver+0x171/0x2b0
? unaccepted_memory_init_kdump+0x20/0x20
driver_register+0x67/0x100
__pci_register_driver+0x83/0x90
sp_pci_init+0x22/0x30
sp_mod_init+0x13/0x30
do_one_initcall+0xb8/0x290
? sched_clock_noinstr+0xd/0x10
? local_clock_noinstr+0x3e/0x100
? stack_depot_save_flags+0x21e/0x6a0
? local_clock+0x1c/0x60
? stack_depot_save_flags+0x21e/0x6a0
? sched_clock_noinstr+0xd/0x10
? local_clock_noinstr+0x3e/0x100
? __lock_acquire+0xd90/0xe30
? sched_clock_noinstr+0xd/0x10
? local_clock_noinstr+0x3e/0x100
? __create_object+0x66/0x100
? local_clock+0x1c/0x60
? __create_object+0x66/0x100
? parameq+0x1b/0x90
? parse_one+0x6d/0x1d0
? parse_args+0xd7/0x1f0
? do_initcall_level+0x180/0x180
do_initcall_level+0xb0/0x180
do_initcalls+0x60/0xa0
? kernel_init+0x1f/0x1d0
do_basic_setup+0x41/0x50
kernel_init_freeable+0x1ac/0x230
? rest_init+0x1f0/0x1f0
kernel_init+0x1f/0x1d0
? rest_init+0x1f0/0x1f0
ret_from_fork+0x3d/0x50
? rest_init+0x1f0/0x1f0
ret_from_fork_asm+0x11/0x20
</TASK>
Modules linked in:
CR2: 00000000000000f0
---[ end trace 0000000000000000 ]---
RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 <4c> 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83
RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000
RDX: 0000000
---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 16:06 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2 , < bbf2c94503f6a421ed9b79e300d8085810da765d
(git)
Affected: 1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2 , < 468e3295774d0edce15f4ae475913b5076dd4f40 (git) |
guessed | |
| Linux | Linux |
Affected:
6.9
Unaffected: 0 , < 6.9 (semver) Unaffected: 6.10.3 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
guessed |
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"id": "CVE-2024-43874",
"options": [
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"timestamp": "2024-09-10T16:06:10.385758Z",
"version": "2.0.3"
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"dateUpdated": "2024-09-12T17:33:18.142Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"title": "CISA ADP Vulnrichment"
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"product": "Linux",
"programFiles": [
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"vendor": "Linux",
"versions": [
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"version": "1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2",
"versionType": "git"
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"versionType": "git"
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{
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"programFiles": [
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"vendor": "Linux",
"versions": [
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"version": "0",
"versionType": "semver"
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"status": "unaffected",
"version": "6.10.3",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "6.11",
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"cpeApplicability": [
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"nodes": [
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"vulnerable": true
},
{
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"versionEndExcluding": "6.11",
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked\n\nFix a null pointer dereference induced by DEBUG_TEST_DRIVER_REMOVE.\nReturn from __sev_snp_shutdown_locked() if the psp_device or the\nsev_device structs are not initialized. Without the fix, the driver will\nproduce the following splat:\n\n ccp 0000:55:00.5: enabling device (0000 -\u003e 0002)\n ccp 0000:55:00.5: sev enabled\n ccp 0000:55:00.5: psp enabled\n BUG: kernel NULL pointer dereference, address: 00000000000000f0\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\n CPU: 262 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc1+ #29\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808\n RBP: ffffb2ea4014b7e8 R08: 0000000000000106 R09: 000000000003d9c0\n R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8\n R13: 0000000000000000 R14: ffffb2ea4014b808 R15: 0000000000000000\n FS: 0000000000000000(0000) GS:ffff9e58b1e00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 0000000000770ef0\n PKRU: 55555554\n Call Trace:\n \u003cTASK\u003e\n ? __die_body+0x6f/0xb0\n ? __die+0xcc/0xf0\n ? page_fault_oops+0x330/0x3a0\n ? save_trace+0x2a5/0x360\n ? do_user_addr_fault+0x583/0x630\n ? exc_page_fault+0x81/0x120\n ? asm_exc_page_fault+0x2b/0x30\n ? __sev_snp_shutdown_locked+0x2e/0x150\n __sev_firmware_shutdown+0x349/0x5b0\n ? pm_runtime_barrier+0x66/0xe0\n sev_dev_destroy+0x34/0xb0\n psp_dev_destroy+0x27/0x60\n sp_destroy+0x39/0x90\n sp_pci_remove+0x22/0x60\n pci_device_remove+0x4e/0x110\n really_probe+0x271/0x4e0\n __driver_probe_device+0x8f/0x160\n driver_probe_device+0x24/0x120\n __driver_attach+0xc7/0x280\n ? driver_attach+0x30/0x30\n bus_for_each_dev+0x10d/0x130\n driver_attach+0x22/0x30\n bus_add_driver+0x171/0x2b0\n ? unaccepted_memory_init_kdump+0x20/0x20\n driver_register+0x67/0x100\n __pci_register_driver+0x83/0x90\n sp_pci_init+0x22/0x30\n sp_mod_init+0x13/0x30\n do_one_initcall+0xb8/0x290\n ? sched_clock_noinstr+0xd/0x10\n ? local_clock_noinstr+0x3e/0x100\n ? stack_depot_save_flags+0x21e/0x6a0\n ? local_clock+0x1c/0x60\n ? stack_depot_save_flags+0x21e/0x6a0\n ? sched_clock_noinstr+0xd/0x10\n ? local_clock_noinstr+0x3e/0x100\n ? __lock_acquire+0xd90/0xe30\n ? sched_clock_noinstr+0xd/0x10\n ? local_clock_noinstr+0x3e/0x100\n ? __create_object+0x66/0x100\n ? local_clock+0x1c/0x60\n ? __create_object+0x66/0x100\n ? parameq+0x1b/0x90\n ? parse_one+0x6d/0x1d0\n ? parse_args+0xd7/0x1f0\n ? do_initcall_level+0x180/0x180\n do_initcall_level+0xb0/0x180\n do_initcalls+0x60/0xa0\n ? kernel_init+0x1f/0x1d0\n do_basic_setup+0x41/0x50\n kernel_init_freeable+0x1ac/0x230\n ? rest_init+0x1f0/0x1f0\n kernel_init+0x1f/0x1d0\n ? rest_init+0x1f0/0x1f0\n ret_from_fork+0x3d/0x50\n ? rest_init+0x1f0/0x1f0\n ret_from_fork_asm+0x11/0x20\n \u003c/TASK\u003e\n Modules linked in:\n CR2: 00000000000000f0\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\n RDX: 0000000\n---truncated---"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T20:31:29.822Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/bbf2c94503f6a421ed9b79e300d8085810da765d"
},
{
"url": "https://git.kernel.org/stable/c/468e3295774d0edce15f4ae475913b5076dd4f40"
}
],
"title": "crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-43874",
"datePublished": "2024-08-21T00:06:26.153Z",
"dateReserved": "2024-08-17T09:11:59.281Z",
"dateUpdated": "2026-05-11T20:31:29.822Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-43874",
"date": "2026-09-16",
"epss": "0.0018",
"percentile": "0.07819"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.9\", \"versionEndExcluding\": \"6.10.3\", \"matchCriteriaId\": \"3332351F-A9A1-4AD4-BEDB-5B3BBD5B7279\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked\\n\\nFix a null pointer dereference induced by DEBUG_TEST_DRIVER_REMOVE.\\nReturn from __sev_snp_shutdown_locked() if the psp_device or the\\nsev_device structs are not initialized. Without the fix, the driver will\\nproduce the following splat:\\n\\n ccp 0000:55:00.5: enabling device (0000 -\u003e 0002)\\n ccp 0000:55:00.5: sev enabled\\n ccp 0000:55:00.5: psp enabled\\n BUG: kernel NULL pointer dereference, address: 00000000000000f0\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\\n CPU: 262 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc1+ #29\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808\\n RBP: ffffb2ea4014b7e8 R08: 0000000000000106 R09: 000000000003d9c0\\n R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8\\n R13: 0000000000000000 R14: ffffb2ea4014b808 R15: 0000000000000000\\n FS: 0000000000000000(0000) GS:ffff9e58b1e00000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 0000000000770ef0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die_body+0x6f/0xb0\\n ? __die+0xcc/0xf0\\n ? page_fault_oops+0x330/0x3a0\\n ? save_trace+0x2a5/0x360\\n ? do_user_addr_fault+0x583/0x630\\n ? exc_page_fault+0x81/0x120\\n ? asm_exc_page_fault+0x2b/0x30\\n ? __sev_snp_shutdown_locked+0x2e/0x150\\n __sev_firmware_shutdown+0x349/0x5b0\\n ? pm_runtime_barrier+0x66/0xe0\\n sev_dev_destroy+0x34/0xb0\\n psp_dev_destroy+0x27/0x60\\n sp_destroy+0x39/0x90\\n sp_pci_remove+0x22/0x60\\n pci_device_remove+0x4e/0x110\\n really_probe+0x271/0x4e0\\n __driver_probe_device+0x8f/0x160\\n driver_probe_device+0x24/0x120\\n __driver_attach+0xc7/0x280\\n ? driver_attach+0x30/0x30\\n bus_for_each_dev+0x10d/0x130\\n driver_attach+0x22/0x30\\n bus_add_driver+0x171/0x2b0\\n ? unaccepted_memory_init_kdump+0x20/0x20\\n driver_register+0x67/0x100\\n __pci_register_driver+0x83/0x90\\n sp_pci_init+0x22/0x30\\n sp_mod_init+0x13/0x30\\n do_one_initcall+0xb8/0x290\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? local_clock+0x1c/0x60\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __lock_acquire+0xd90/0xe30\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __create_object+0x66/0x100\\n ? local_clock+0x1c/0x60\\n ? __create_object+0x66/0x100\\n ? parameq+0x1b/0x90\\n ? parse_one+0x6d/0x1d0\\n ? parse_args+0xd7/0x1f0\\n ? do_initcall_level+0x180/0x180\\n do_initcall_level+0xb0/0x180\\n do_initcalls+0x60/0xa0\\n ? kernel_init+0x1f/0x1d0\\n do_basic_setup+0x41/0x50\\n kernel_init_freeable+0x1ac/0x230\\n ? rest_init+0x1f0/0x1f0\\n kernel_init+0x1f/0x1d0\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork+0x3d/0x50\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork_asm+0x11/0x20\\n \u003c/TASK\u003e\\n Modules linked in:\\n CR2: 00000000000000f0\\n ---[ end trace 0000000000000000 ]---\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: ccp - Se corrige la desreferencia del puntero nulo en __sev_snp_shutdown_locked Se corrige la desreferencia del puntero nulo inducida por DEBUG_TEST_DRIVER_REMOVE. Regresa desde __sev_snp_shutdown_locked() si las estructuras psp_device o sev_device no est\\u00e1n inicializadas. Sin la soluci\\u00f3n, el controlador producir\\u00e1 el siguiente s\\u00edmbolo: ccp 0000:55:00.5: dispositivo de habilitaci\\u00f3n (0000 -\u0026gt; 0002) ccp 0000:55:00.5: sev habilitado ccp 0000:55:00.5: psp habilitado ERROR: puntero NULL del kernel desreferencia, direcci\\u00f3n: 00000000000000f0 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\\u00e1gina no presente PGD 0 P4D 0 Ups: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI CPU: 262 PID: 1 Comm: swapper /0 No contaminado 6.9.0-rc1+ #29 RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150 C\\u00f3digo: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u0026lt;4c\u0026gt; 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83 RSP: b8 EFLAGS: 00010286 RAX: 0000000000000000 RBX : ffff9e4acd2e0a28 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808 RBP: ffffb2ea4014b7e8 R08: 00000106 R09: 000000000003d9c0 R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8 R13: 0000000000000000 R14: ffffb2ea4014b808 R 15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff9e58b1e00000 (0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 70ef0 PKRU: 55555554 Seguimiento de llamadas: ? __die_body+0x6f/0xb0 ? __die+0xcc/0xf0 ? page_fault_oops+0x330/0x3a0? save_trace+0x2a5/0x360? do_user_addr_fault+0x583/0x630? exc_page_fault+0x81/0x120? asm_exc_page_fault+0x2b/0x30? __sev_snp_shutdown_locked+0x2e/0x150 __sev_firmware_shutdown+0x349/0x5b0 ? pm_runtime_barrier+0x66/0xe0 sev_dev_destroy+0x34/0xb0 psp_dev_destroy+0x27/0x60 sp_destroy+0x39/0x90 sp_pci_remove+0x22/0x60 pci_device_remove+0x4e/0x110 Actually_probe+0x271/0x4 e0 __driver_probe_device+0x8f/0x160 driver_probe_device+0x24/0x120 __driver_attach+0xc7/0x280 ? driver_attach+0x30/0x30 bus_for_each_dev+0x10d/0x130 driver_attach+0x22/0x30 bus_add_driver+0x171/0x2b0? unaccepted_memory_init_kdump+0x20/0x20 driver_register+0x67/0x100 __pci_register_driver+0x83/0x90 sp_pci_init+0x22/0x30 sp_mod_init+0x13/0x30 do_one_initcall+0xb8/0x290 ? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? stack_depot_save_flags+0x21e/0x6a0? reloj_local+0x1c/0x60? stack_depot_save_flags+0x21e/0x6a0? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? __lock_acquire+0xd90/0xe30? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? __create_object+0x66/0x100? reloj_local+0x1c/0x60? __create_object+0x66/0x100? parameq+0x1b/0x90 ? parse_one+0x6d/0x1d0? parse_args+0xd7/0x1f0? do_initcall_level+0x180/0x180 do_initcall_level+0xb0/0x180 do_initcalls+0x60/0xa0 ? kernel_init+0x1f/0x1d0 do_basic_setup+0x41/0x50 kernel_init_freeable+0x1ac/0x230 ? rest_init+0x1f0/0x1f0 kernel_init+0x1f/0x1d0? rest_init+0x1f0/0x1f0 ret_from_fork+0x3d/0x50 ? rest_init+0x1f0/0x1f0 ret_from_fork_asm+0x11/0x20 M\\u00f3dulos vinculados en: CR2: 00000000000000f0 ---[ seguimiento final 0000000000000000 ]--- RIP:__sev_snp_shutdown_locked+0x2e/0 x150 C\\u00f3digo: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u0026lt;4c\u0026gt; 8b a0 f0 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83 RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000 : 0000000 ---truncado---\"}]",
"id": "CVE-2024-43874",
"lastModified": "2024-09-03T13:26:33.563",
"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:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
"published": "2024-08-21T01:15:11.843",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/468e3295774d0edce15f4ae475913b5076dd4f40\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/bbf2c94503f6a421ed9b79e300d8085810da765d\", \"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-476\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-43874\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T01:15:11.843\",\"lastModified\":\"2026-06-17T07:51:54.133\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked\\n\\nFix a null pointer dereference induced by DEBUG_TEST_DRIVER_REMOVE.\\nReturn from __sev_snp_shutdown_locked() if the psp_device or the\\nsev_device structs are not initialized. Without the fix, the driver will\\nproduce the following splat:\\n\\n ccp 0000:55:00.5: enabling device (0000 -\u003e 0002)\\n ccp 0000:55:00.5: sev enabled\\n ccp 0000:55:00.5: psp enabled\\n BUG: kernel NULL pointer dereference, address: 00000000000000f0\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\\n CPU: 262 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc1+ #29\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808\\n RBP: ffffb2ea4014b7e8 R08: 0000000000000106 R09: 000000000003d9c0\\n R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8\\n R13: 0000000000000000 R14: ffffb2ea4014b808 R15: 0000000000000000\\n FS: 0000000000000000(0000) GS:ffff9e58b1e00000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 0000000000770ef0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die_body+0x6f/0xb0\\n ? __die+0xcc/0xf0\\n ? page_fault_oops+0x330/0x3a0\\n ? save_trace+0x2a5/0x360\\n ? do_user_addr_fault+0x583/0x630\\n ? exc_page_fault+0x81/0x120\\n ? asm_exc_page_fault+0x2b/0x30\\n ? __sev_snp_shutdown_locked+0x2e/0x150\\n __sev_firmware_shutdown+0x349/0x5b0\\n ? pm_runtime_barrier+0x66/0xe0\\n sev_dev_destroy+0x34/0xb0\\n psp_dev_destroy+0x27/0x60\\n sp_destroy+0x39/0x90\\n sp_pci_remove+0x22/0x60\\n pci_device_remove+0x4e/0x110\\n really_probe+0x271/0x4e0\\n __driver_probe_device+0x8f/0x160\\n driver_probe_device+0x24/0x120\\n __driver_attach+0xc7/0x280\\n ? driver_attach+0x30/0x30\\n bus_for_each_dev+0x10d/0x130\\n driver_attach+0x22/0x30\\n bus_add_driver+0x171/0x2b0\\n ? unaccepted_memory_init_kdump+0x20/0x20\\n driver_register+0x67/0x100\\n __pci_register_driver+0x83/0x90\\n sp_pci_init+0x22/0x30\\n sp_mod_init+0x13/0x30\\n do_one_initcall+0xb8/0x290\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? local_clock+0x1c/0x60\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __lock_acquire+0xd90/0xe30\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __create_object+0x66/0x100\\n ? local_clock+0x1c/0x60\\n ? __create_object+0x66/0x100\\n ? parameq+0x1b/0x90\\n ? parse_one+0x6d/0x1d0\\n ? parse_args+0xd7/0x1f0\\n ? do_initcall_level+0x180/0x180\\n do_initcall_level+0xb0/0x180\\n do_initcalls+0x60/0xa0\\n ? kernel_init+0x1f/0x1d0\\n do_basic_setup+0x41/0x50\\n kernel_init_freeable+0x1ac/0x230\\n ? rest_init+0x1f0/0x1f0\\n kernel_init+0x1f/0x1d0\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork+0x3d/0x50\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork_asm+0x11/0x20\\n \u003c/TASK\u003e\\n Modules linked in:\\n CR2: 00000000000000f0\\n ---[ end trace 0000000000000000 ]---\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: ccp - Se corrige la desreferencia del puntero nulo en __sev_snp_shutdown_locked Se corrige la desreferencia del puntero nulo inducida por DEBUG_TEST_DRIVER_REMOVE. Regresa desde __sev_snp_shutdown_locked() si las estructuras psp_device o sev_device no est\u00e1n inicializadas. Sin la soluci\u00f3n, el controlador producir\u00e1 el siguiente s\u00edmbolo: ccp 0000:55:00.5: dispositivo de habilitaci\u00f3n (0000 -\u0026gt; 0002) ccp 0000:55:00.5: sev habilitado ccp 0000:55:00.5: psp habilitado ERROR: puntero NULL del kernel desreferencia, direcci\u00f3n: 00000000000000f0 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\u00e1gina no presente PGD 0 P4D 0 Ups: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI CPU: 262 PID: 1 Comm: swapper /0 No contaminado 6.9.0-rc1+ #29 RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150 C\u00f3digo: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u0026lt;4c\u0026gt; 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83 RSP: b8 EFLAGS: 00010286 RAX: 0000000000000000 RBX : ffff9e4acd2e0a28 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808 RBP: ffffb2ea4014b7e8 R08: 00000106 R09: 000000000003d9c0 R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8 R13: 0000000000000000 R14: ffffb2ea4014b808 R 15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff9e58b1e00000 (0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 70ef0 PKRU: 55555554 Seguimiento de llamadas: ? __die_body+0x6f/0xb0 ? __die+0xcc/0xf0 ? page_fault_oops+0x330/0x3a0? save_trace+0x2a5/0x360? do_user_addr_fault+0x583/0x630? exc_page_fault+0x81/0x120? asm_exc_page_fault+0x2b/0x30? __sev_snp_shutdown_locked+0x2e/0x150 __sev_firmware_shutdown+0x349/0x5b0 ? pm_runtime_barrier+0x66/0xe0 sev_dev_destroy+0x34/0xb0 psp_dev_destroy+0x27/0x60 sp_destroy+0x39/0x90 sp_pci_remove+0x22/0x60 pci_device_remove+0x4e/0x110 Actually_probe+0x271/0x4 e0 __driver_probe_device+0x8f/0x160 driver_probe_device+0x24/0x120 __driver_attach+0xc7/0x280 ? driver_attach+0x30/0x30 bus_for_each_dev+0x10d/0x130 driver_attach+0x22/0x30 bus_add_driver+0x171/0x2b0? unaccepted_memory_init_kdump+0x20/0x20 driver_register+0x67/0x100 __pci_register_driver+0x83/0x90 sp_pci_init+0x22/0x30 sp_mod_init+0x13/0x30 do_one_initcall+0xb8/0x290 ? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? stack_depot_save_flags+0x21e/0x6a0? reloj_local+0x1c/0x60? stack_depot_save_flags+0x21e/0x6a0? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? __lock_acquire+0xd90/0xe30? sched_clock_noinstr+0xd/0x10? local_clock_noinstr+0x3e/0x100? __create_object+0x66/0x100? reloj_local+0x1c/0x60? __create_object+0x66/0x100? parameq+0x1b/0x90 ? parse_one+0x6d/0x1d0? parse_args+0xd7/0x1f0? do_initcall_level+0x180/0x180 do_initcall_level+0xb0/0x180 do_initcalls+0x60/0xa0 ? kernel_init+0x1f/0x1d0 do_basic_setup+0x41/0x50 kernel_init_freeable+0x1ac/0x230 ? rest_init+0x1f0/0x1f0 kernel_init+0x1f/0x1d0? rest_init+0x1f0/0x1f0 ret_from_fork+0x3d/0x50 ? rest_init+0x1f0/0x1f0 ret_from_fork_asm+0x11/0x20 M\u00f3dulos vinculados en: CR2: 00000000000000f0 ---[ seguimiento final 0000000000000000 ]--- RIP:__sev_snp_shutdown_locked+0x2e/0 x150 C\u00f3digo: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u0026lt;4c\u0026gt; 8b a0 f0 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83 RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000 : 0000000 ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/crypto/ccp/sev-dev.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2\",\"lessThan\":\"bbf2c94503f6a421ed9b79e300d8085810da765d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2\",\"lessThan\":\"468e3295774d0edce15f4ae475913b5076dd4f40\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/crypto/ccp/sev-dev.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.3\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"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:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T16:06:10.385758Z\",\"id\":\"CVE-2024-43874\",\"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-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.10.3\",\"matchCriteriaId\":\"3332351F-A9A1-4AD4-BEDB-5B3BBD5B7279\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/468e3295774d0edce15f4ae475913b5076dd4f40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bbf2c94503f6a421ed9b79e300d8085810da765d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T14:33:39+00:00",
"cve": "CVE-2024-43874",
"id": "CVE-2024-43874",
"initial_release_date": "2024-08-21T00:00:00+00:00",
"product_status:known_affected": "108",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-43874.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T00:33:34Z",
"cve": "CVE-2024-43874",
"id": "CVE-2024-43874",
"initial_release_date": "2024-08-22T02:58:29Z",
"product_status:known_affected": "394",
"product_status:known_not_affected": "322",
"product_status:recommended": "355",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-43874",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-43874.json",
"version": "54"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-43874\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:06:10.385758Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:22.651Z\"}}], \"cna\": {\"title\": \"crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2\", \"lessThan\": \"bbf2c94503f6a421ed9b79e300d8085810da765d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2\", \"lessThan\": \"468e3295774d0edce15f4ae475913b5076dd4f40\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/crypto/ccp/sev-dev.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.10.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/crypto/ccp/sev-dev.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/bbf2c94503f6a421ed9b79e300d8085810da765d\"}, {\"url\": \"https://git.kernel.org/stable/c/468e3295774d0edce15f4ae475913b5076dd4f40\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked\\n\\nFix a null pointer dereference induced by DEBUG_TEST_DRIVER_REMOVE.\\nReturn from __sev_snp_shutdown_locked() if the psp_device or the\\nsev_device structs are not initialized. Without the fix, the driver will\\nproduce the following splat:\\n\\n ccp 0000:55:00.5: enabling device (0000 -\u003e 0002)\\n ccp 0000:55:00.5: sev enabled\\n ccp 0000:55:00.5: psp enabled\\n BUG: kernel NULL pointer dereference, address: 00000000000000f0\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\\n CPU: 262 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc1+ #29\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2ea4014b808\\n RBP: ffffb2ea4014b7e8 R08: 0000000000000106 R09: 000000000003d9c0\\n R10: 0000000000000001 R11: ffffffffa39ff070 R12: ffff9e49d40590c8\\n R13: 0000000000000000 R14: ffffb2ea4014b808 R15: 0000000000000000\\n FS: 0000000000000000(0000) GS:ffff9e58b1e00000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 00000000000000f0 CR3: 0000000418a3e001 CR4: 0000000000770ef0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die_body+0x6f/0xb0\\n ? __die+0xcc/0xf0\\n ? page_fault_oops+0x330/0x3a0\\n ? save_trace+0x2a5/0x360\\n ? do_user_addr_fault+0x583/0x630\\n ? exc_page_fault+0x81/0x120\\n ? asm_exc_page_fault+0x2b/0x30\\n ? __sev_snp_shutdown_locked+0x2e/0x150\\n __sev_firmware_shutdown+0x349/0x5b0\\n ? pm_runtime_barrier+0x66/0xe0\\n sev_dev_destroy+0x34/0xb0\\n psp_dev_destroy+0x27/0x60\\n sp_destroy+0x39/0x90\\n sp_pci_remove+0x22/0x60\\n pci_device_remove+0x4e/0x110\\n really_probe+0x271/0x4e0\\n __driver_probe_device+0x8f/0x160\\n driver_probe_device+0x24/0x120\\n __driver_attach+0xc7/0x280\\n ? driver_attach+0x30/0x30\\n bus_for_each_dev+0x10d/0x130\\n driver_attach+0x22/0x30\\n bus_add_driver+0x171/0x2b0\\n ? unaccepted_memory_init_kdump+0x20/0x20\\n driver_register+0x67/0x100\\n __pci_register_driver+0x83/0x90\\n sp_pci_init+0x22/0x30\\n sp_mod_init+0x13/0x30\\n do_one_initcall+0xb8/0x290\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? local_clock+0x1c/0x60\\n ? stack_depot_save_flags+0x21e/0x6a0\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __lock_acquire+0xd90/0xe30\\n ? sched_clock_noinstr+0xd/0x10\\n ? local_clock_noinstr+0x3e/0x100\\n ? __create_object+0x66/0x100\\n ? local_clock+0x1c/0x60\\n ? __create_object+0x66/0x100\\n ? parameq+0x1b/0x90\\n ? parse_one+0x6d/0x1d0\\n ? parse_args+0xd7/0x1f0\\n ? do_initcall_level+0x180/0x180\\n do_initcall_level+0xb0/0x180\\n do_initcalls+0x60/0xa0\\n ? kernel_init+0x1f/0x1d0\\n do_basic_setup+0x41/0x50\\n kernel_init_freeable+0x1ac/0x230\\n ? rest_init+0x1f0/0x1f0\\n kernel_init+0x1f/0x1d0\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork+0x3d/0x50\\n ? rest_init+0x1f0/0x1f0\\n ret_from_fork_asm+0x11/0x20\\n \u003c/TASK\u003e\\n Modules linked in:\\n CR2: 00000000000000f0\\n ---[ end trace 0000000000000000 ]---\\n RIP: 0010:__sev_snp_shutdown_locked+0x2e/0x150\\n Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 41 89 f7 49 89 fe 65 48 8b 04 25 28 00 00 00 48 89 45 d8 48 8b 05 6a 5a 7f 06 \u003c4c\u003e 8b a0 f0 00 00 00 41 0f b6 9c 24 a2 00 00 00 48 83 fb 02 0f 83\\n RSP: 0018:ffffb2ea4014b7b8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: ffff9e4acd2e0a28 RCX: 0000000000000000\\n RDX: 0000000\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.3\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"6.9\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:31:29.822Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-43874\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:31:29.822Z\", \"dateReserved\": \"2024-08-17T09:11:59.281Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-21T00:06:26.153Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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