CVE-2022-49723
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49723
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49723.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49723
- Downstream
- Related
- Published
- 2025-02-26T02:24:36Z
- Modified
- 2025-10-13T19:14:53.675816Z
- Summary
- drm/i915/reset: Fix error_state_read ptr + offset use
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/reset: Fix errorstateread ptr + offset use
Fix our pointer offset usage in errorstateread when there is no i915gpucoredump but buf offset is non-zero.
This fixes a kernel page fault can happen when multiple tests are running concurrently in a loop and one is producing engine resets and consuming the i915 error_state dump while the other is forcing full GT resets. (takes a while to trigger).
The dmesg call trace:
[ 5590.803000] BUG: unable to handle page fault for address: ffffffffa0b0e000 [ 5590.803009] #PF: supervisor read access in kernel mode [ 5590.803013] #PF: errorcode(0x0000) - not-present page [ 5590.803016] PGD 5814067 P4D 5814067 PUD 5815063 PMD 109de4067 PTE 0 [ 5590.803022] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 5590.803026] CPU: 5 PID: 13656 Comm: i915hangman Tainted: G U 5.17.0-rc5-ups69-guc-err-capt-rev6+ #136 [ 5590.803033] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-M LP4x RVP, BIOS ADLPFWI1.R00. 3031.A02.2201171222 01/17/2022 [ 5590.803039] RIP: 0010:memcpyerms+0x6/0x10 [ 5590.803045] Code: fe ff ff cc eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 5590.803054] RSP: 0018:ffffc90003a8fdf0 EFLAGS: 00010282 [ 5590.803057] RAX: ffff888107ee9000 RBX: ffff888108cb1a00 RCX: 0000000000000f8f [ 5590.803061] RDX: 0000000000001000 RSI: ffffffffa0b0e000 RDI: ffff888107ee9071 [ 5590.803065] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 5590.803069] R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000019 [ 5590.803073] R13: 0000000000174fff R14: 0000000000001000 R15: ffff888107ee9000 [ 5590.803077] FS: 00007f62a99bee80(0000) GS:ffff88849f880000(0000) knlGS:0000000000000000 [ 5590.803082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5590.803085] CR2: ffffffffa0b0e000 CR3: 000000010a1a8004 CR4: 0000000000770ee0 [ 5590.803089] PKRU: 55555554 [ 5590.803091] Call Trace: [ 5590.803093] <TASK> [ 5590.803096] errorstateread+0xa1/0xd0 [i915] [ 5590.803175] kernfsfopreaditer+0xb2/0x1b0 [ 5590.803180] newsyncread+0x116/0x1a0 [ 5590.803185] vfsread+0x114/0x1b0 [ 5590.803189] ksysread+0x63/0xe0 [ 5590.803193] dosyscall64+0x38/0xc0 [ 5590.803197] entrySYSCALL64afterhwframe+0x44/0xae [ 5590.803201] RIP: 0033:0x7f62aaea5912 [ 5590.803204] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 5a b9 0c 00 e8 05 19 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [ 5590.803213] RSP: 002b:00007fff5b659ae8 EFLAGS: 00000246 ORIGRAX: 0000000000000000 [ 5590.803218] RAX: ffffffffffffffda RBX: 0000000000100000 RCX: 00007f62aaea5912 [ 5590.803221] RDX: 000000000008b000 RSI: 00007f62a8c4000f RDI: 0000000000000006 [ 5590.803225] RBP: 00007f62a8bcb00f R08: 0000000000200010 R09: 0000000000101000 [ 5590.803229] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000006 [ 5590.803233] R13: 0000000000075000 R14: 00007f62a8acb010 R15: 0000000000200000 [ 5590.803238] </TASK> [ 5590.803240] Modules linked in: i915 ttm drmbuddy drmdphelper drmkmshelper syscopyarea sysfillrect sysimgblt fbsysfops primenumbers nfnetlink brnetfilter overlay meipxp meihdcp x86pkgtempthermal coretemp kvmintel sndhdacodechdmi sndhda_intel
---truncated---
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/606e5d565605e26bf61a0933a6d56940f339c080
- https://git.kernel.org/stable/c/63b26fe0252f923e6aca373e3ad4b31202dcd331
- https://git.kernel.org/stable/c/c9b576d0c7bf55aeae1a736da7974fa202c4394d
- https://git.kernel.org/stable/c/f4c5eba87675a07a6c28cdaca7366aeb4258ec78
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0e39037b3165567660b0e03f67534da5269a0465Fixed63b26fe0252f923e6aca373e3ad4b31202dcd331
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0e39037b3165567660b0e03f67534da5269a0465Fixedf4c5eba87675a07a6c28cdaca7366aeb4258ec78
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0e39037b3165567660b0e03f67534da5269a0465Fixed606e5d565605e26bf61a0933a6d56940f339c080
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0e39037b3165567660b0e03f67534da5269a0465Fixedc9b576d0c7bf55aeae1a736da7974fa202c4394d
Affected versions
v4.*
v5.*
Database specific
{
"vanir_signatures": [
{
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c",
"function": "error_state_read"
},
"id": "CVE-2022-49723-592a9947",
"digest": {
"length": 573.0,
"function_hash": "49197889802671697794078489764144492814"
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c9b576d0c7bf55aeae1a736da7974fa202c4394d",
"signature_version": "v1"
},
{
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c"
},
"id": "CVE-2022-49723-a3469c88",
"digest": {
"threshold": 0.9,
"line_hashes": [
"322806098924424747609458256246559354493",
"142064760396259763720051810232866033484",
"208980846827253798213654400113207242124",
"65849615153039979303442920918230824657",
"37771619401387480805112839645220404135",
"292288819988761636056378401938553574074",
"306079356504482998201643299398278256592",
"21731138077443339033355091575277443521",
"286465090505185254772834389198398006413"
]
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c9b576d0c7bf55aeae1a736da7974fa202c4394d",
"signature_version": "v1"
},
{
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c",
"function": "error_state_read"
},
"id": "CVE-2022-49723-aa14fb21",
"digest": {
"length": 573.0,
"function_hash": "49197889802671697794078489764144492814"
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@63b26fe0252f923e6aca373e3ad4b31202dcd331",
"signature_version": "v1"
},
{
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c",
"function": "error_state_read"
},
"id": "CVE-2022-49723-ae170e57",
"digest": {
"length": 573.0,
"function_hash": "49197889802671697794078489764144492814"
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f4c5eba87675a07a6c28cdaca7366aeb4258ec78",
"signature_version": "v1"
},
{
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c",
"function": "error_state_read"
},
"id": "CVE-2022-49723-c522c87e",
"digest": {
"length": 573.0,
"function_hash": "49197889802671697794078489764144492814"
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@606e5d565605e26bf61a0933a6d56940f339c080",
"signature_version": "v1"
},
{
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c"
},
"id": "CVE-2022-49723-d0f198cd",
"digest": {
"threshold": 0.9,
"line_hashes": [
"322806098924424747609458256246559354493",
"142064760396259763720051810232866033484",
"208980846827253798213654400113207242124",
"65849615153039979303442920918230824657",
"37771619401387480805112839645220404135",
"292288819988761636056378401938553574074",
"306079356504482998201643299398278256592",
"21731138077443339033355091575277443521",
"286465090505185254772834389198398006413"
]
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@63b26fe0252f923e6aca373e3ad4b31202dcd331",
"signature_version": "v1"
},
{
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c"
},
"id": "CVE-2022-49723-e5c55e7d",
"digest": {
"threshold": 0.9,
"line_hashes": [
"322806098924424747609458256246559354493",
"142064760396259763720051810232866033484",
"208980846827253798213654400113207242124",
"65849615153039979303442920918230824657",
"37771619401387480805112839645220404135",
"292288819988761636056378401938553574074",
"306079356504482998201643299398278256592",
"21731138077443339033355091575277443521",
"286465090505185254772834389198398006413"
]
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@606e5d565605e26bf61a0933a6d56940f339c080",
"signature_version": "v1"
},
{
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/i915/i915_sysfs.c"
},
"id": "CVE-2022-49723-ffcc8ebc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"322806098924424747609458256246559354493",
"142064760396259763720051810232866033484",
"208980846827253798213654400113207242124",
"65849615153039979303442920918230824657",
"37771619401387480805112839645220404135",
"292288819988761636056378401938553574074",
"306079356504482998201643299398278256592",
"21731138077443339033355091575277443521",
"286465090505185254772834389198398006413"
]
},
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f4c5eba87675a07a6c28cdaca7366aeb4258ec78",
"signature_version": "v1"
}
]
}