CVE-2022-49261
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49261
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49261.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49261
- Downstream
- Related
- Published
- 2025-02-26T01:56:13Z
- Modified
- 2025-10-21T09:48:00.293174Z
- Summary
- drm/i915/gem: add missing boundary check in vm_access
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gem: add missing boundary check in vm_access
A missing bounds check in vm_access() can lead to an out-of-bounds read or write in the adjacent memory area, since the len attribute is not validated before the memcpy later in the function, potentially hitting:
[ 183.637831] BUG: unable to handle page fault for address: ffffc90000c86000 [ 183.637934] #PF: supervisor read access in kernel mode [ 183.637997] #PF: errorcode(0x0000) - not-present page [ 183.638059] PGD 100000067 P4D 100000067 PUD 100258067 PMD 106341067 PTE 0 [ 183.638144] Oops: 0000 [#2] PREEMPT SMP NOPTI [ 183.638201] CPU: 3 PID: 1790 Comm: poc Tainted: G D 5.17.0-rc6-ci-drm-11296+ #1 [ 183.638298] Hardware name: Intel Corporation CoffeeLake Client Platform/CoffeeLake H DDR4 RVP, BIOS CNLSFWR1.R00.X208.B00.1905301319 05/30/2019 [ 183.638430] RIP: 0010:memcpyerms+0x6/0x10 [ 183.640213] RSP: 0018:ffffc90001763d48 EFLAGS: 00010246 [ 183.641117] RAX: ffff888109c14000 RBX: ffff888111bece40 RCX: 0000000000000ffc [ 183.642029] RDX: 0000000000001000 RSI: ffffc90000c86000 RDI: ffff888109c14004 [ 183.642946] RBP: 0000000000000ffc R08: 800000000000016b R09: 0000000000000000 [ 183.643848] R10: ffffc90000c85000 R11: 0000000000000048 R12: 0000000000001000 [ 183.644742] R13: ffff888111bed190 R14: ffff888109c14000 R15: 0000000000001000 [ 183.645653] FS: 00007fe5ef807540(0000) GS:ffff88845b380000(0000) knlGS:0000000000000000 [ 183.646570] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 183.647481] CR2: ffffc90000c86000 CR3: 000000010ff02006 CR4: 00000000003706e0 [ 183.648384] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 183.649271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 183.650142] Call Trace: [ 183.650988] <TASK> [ 183.651793] vmaccess+0x1f0/0x2a0 [i915] [ 183.652726] _accessremotevm+0x224/0x380 [ 183.653561] memrw.isra.0+0xf9/0x190 [ 183.654402] vfsread+0x9d/0x1b0 [ 183.655238] ksysread+0x63/0xe0 [ 183.656065] dosyscall64+0x38/0xc0 [ 183.656882] entrySYSCALL64afterhwframe+0x44/0xae [ 183.657663] RIP: 0033:0x7fe5ef725142 [ 183.659351] RSP: 002b:00007ffe1e81c7e8 EFLAGS: 00000246 ORIGRAX: 0000000000000000 [ 183.660227] RAX: ffffffffffffffda RBX: 0000557055dfb780 RCX: 00007fe5ef725142 [ 183.661104] RDX: 0000000000001000 RSI: 00007ffe1e81d880 RDI: 0000000000000005 [ 183.661972] RBP: 00007ffe1e81e890 R08: 0000000000000030 R09: 0000000000000046 [ 183.662832] R10: 0000557055dfc2e0 R11: 0000000000000246 R12: 0000557055dfb1c0 [ 183.663691] R13: 00007ffe1e81e980 R14: 0000000000000000 R15: 0000000000000000
Changes since v1: - Updated if condition with rangeoverflowst [Chris Wilson]
[mauld: tidy up the commit message and add Cc: stable] (cherry picked from commit 661412e301e2ca86799aa4f400d1cf0bd38c57c6)
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/312d3d4f49e12f97260bcf972c848c3562126a18
- https://git.kernel.org/stable/c/3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7
- https://git.kernel.org/stable/c/5f6e560e3e86ac053447524224e411034f41f5c7
- https://git.kernel.org/stable/c/89ddcc81914ab58cc203acc844f27d55ada8ec0e
- https://git.kernel.org/stable/c/8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa
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
-
Introduced9f909e215fea0652023b9ed09d3d7bfe10386423Fixed89ddcc81914ab58cc203acc844f27d55ada8ec0e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9f909e215fea0652023b9ed09d3d7bfe10386423Fixed312d3d4f49e12f97260bcf972c848c3562126a18
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9f909e215fea0652023b9ed09d3d7bfe10386423Fixed5f6e560e3e86ac053447524224e411034f41f5c7
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9f909e215fea0652023b9ed09d3d7bfe10386423Fixed8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9f909e215fea0652023b9ed09d3d7bfe10386423Fixed3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7
Affected versions
v5.*
Database specific
vanir_signatures
[
{
"id": "CVE-2022-49261-1834b9de",
"deprecated": false,
"signature_version": "v1",
"digest": {
"length": 866.0,
"function_hash": "161269037402564412559990180842755843559"
},
"target": {
"function": "vm_access",
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5f6e560e3e86ac053447524224e411034f41f5c7"
},
{
"id": "CVE-2022-49261-25de5e7d",
"deprecated": false,
"signature_version": "v1",
"digest": {
"length": 866.0,
"function_hash": "161269037402564412559990180842755843559"
},
"target": {
"function": "vm_access",
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7"
},
{
"id": "CVE-2022-49261-4790c6b2",
"deprecated": false,
"signature_version": "v1",
"digest": {
"length": 866.0,
"function_hash": "161269037402564412559990180842755843559"
},
"target": {
"function": "vm_access",
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@312d3d4f49e12f97260bcf972c848c3562126a18"
},
{
"id": "CVE-2022-49261-64ced99d",
"deprecated": false,
"signature_version": "v1",
"digest": {
"line_hashes": [
"15695926923394844187633329733336119555",
"301252687989921858444936638551073484413",
"316842941097097332974185206757355376017",
"36552275211471762302593420040817133070"
],
"threshold": 0.9
},
"target": {
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7"
},
{
"id": "CVE-2022-49261-80e1bc45",
"deprecated": false,
"signature_version": "v1",
"digest": {
"line_hashes": [
"15695926923394844187633329733336119555",
"301252687989921858444936638551073484413",
"316842941097097332974185206757355376017",
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],
"threshold": 0.9
},
"target": {
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5f6e560e3e86ac053447524224e411034f41f5c7"
},
{
"id": "CVE-2022-49261-8ce12db7",
"deprecated": false,
"signature_version": "v1",
"digest": {
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"function_hash": "161269037402564412559990180842755843559"
},
"target": {
"function": "vm_access",
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa"
},
{
"id": "CVE-2022-49261-97b79dd6",
"deprecated": false,
"signature_version": "v1",
"digest": {
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],
"threshold": 0.9
},
"target": {
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@312d3d4f49e12f97260bcf972c848c3562126a18"
},
{
"id": "CVE-2022-49261-b3354c05",
"deprecated": false,
"signature_version": "v1",
"digest": {
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"function_hash": "272136544272247646652518001366109480157"
},
"target": {
"function": "vm_access",
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@89ddcc81914ab58cc203acc844f27d55ada8ec0e"
},
{
"id": "CVE-2022-49261-c8203354",
"deprecated": false,
"signature_version": "v1",
"digest": {
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"threshold": 0.9
},
"target": {
"file": "drivers/gpu/drm/i915/gem/i915_gem_mman.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa"
},
{
"id": "CVE-2022-49261-eee8f30b",
"deprecated": false,
"signature_version": "v1",
"digest": {
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"threshold": 0.9
},
"target": {
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},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@89ddcc81914ab58cc203acc844f27d55ada8ec0e"
}
]