ghsa-qj8j-993w-xq64
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex
If amdgpu_cs_vm_handling returns r != 0, then it will unlock the bo_list_mutex inside the function amdgpu_cs_vm_handling and again on amdgpu_cs_parser_fini. This problem results in the following use-after-free problem:
[ 220.280990] ------------[ cut here ]------------ [ 220.281000] refcount_t: underflow; use-after-free. [ 220.281019] WARNING: CPU: 1 PID: 3746 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 [ 220.281029] ------------[ cut here ]------------ [ 220.281415] CPU: 1 PID: 3746 Comm: chrome:cs0 Tainted: G W L ------- --- 5.20.0-0.rc0.20220812git7ebfc85e2cd7.10.fc38.x86_64 #1 [ 220.281421] Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 4403 04/27/2022 [ 220.281426] RIP: 0010:refcount_warn_saturate+0xba/0x110 [ 220.281431] Code: 01 01 e8 79 4a 6f 00 0f 0b e9 42 47 a5 00 80 3d de 7e be 01 00 75 85 48 c7 c7 f8 98 8e 98 c6 05 ce 7e be 01 01 e8 56 4a 6f 00 <0f> 0b e9 1f 47 a5 00 80 3d b9 7e be 01 00 0f 85 5e ff ff ff 48 c7 [ 220.281437] RSP: 0018:ffffb4b0d18d7a80 EFLAGS: 00010282 [ 220.281443] RAX: 0000000000000026 RBX: 0000000000000003 RCX: 0000000000000000 [ 220.281448] RDX: 0000000000000001 RSI: ffffffff988d06dc RDI: 00000000ffffffff [ 220.281452] RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffb4b0d18d7930 [ 220.281457] R10: 0000000000000003 R11: ffffa0672e2fffe8 R12: ffffa058ca360400 [ 220.281461] R13: ffffa05846c50a18 R14: 00000000fffffe00 R15: 0000000000000003 [ 220.281465] FS: 00007f82683e06c0(0000) GS:ffffa066e2e00000(0000) knlGS:0000000000000000 [ 220.281470] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 220.281475] CR2: 00003590005cc000 CR3: 00000001fca46000 CR4: 0000000000350ee0 [ 220.281480] Call Trace: [ 220.281485] [ 220.281490] amdgpu_cs_ioctl+0x4e2/0x2070 [amdgpu] [ 220.281806] ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu] [ 220.282028] drm_ioctl_kernel+0xa4/0x150 [ 220.282043] drm_ioctl+0x21f/0x420 [ 220.282053] ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu] [ 220.282275] ? lock_release+0x14f/0x460 [ 220.282282] ? _raw_spin_unlock_irqrestore+0x30/0x60 [ 220.282290] ? _raw_spin_unlock_irqrestore+0x30/0x60 [ 220.282297] ? lockdep_hardirqs_on+0x7d/0x100 [ 220.282305] ? _raw_spin_unlock_irqrestore+0x40/0x60 [ 220.282317] amdgpu_drm_ioctl+0x4a/0x80 [amdgpu] [ 220.282534] __x64_sys_ioctl+0x90/0xd0 [ 220.282545] do_syscall_64+0x5b/0x80 [ 220.282551] ? futex_wake+0x6c/0x150 [ 220.282568] ? lock_is_held_type+0xe8/0x140 [ 220.282580] ? do_syscall_64+0x67/0x80 [ 220.282585] ? lockdep_hardirqs_on+0x7d/0x100 [ 220.282592] ? do_syscall_64+0x67/0x80 [ 220.282597] ? do_syscall_64+0x67/0x80 [ 220.282602] ? lockdep_hardirqs_on+0x7d/0x100 [ 220.282609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 220.282616] RIP: 0033:0x7f8282a4f8bf [ 220.282639] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 220.282644] RSP: 002b:00007f82683df410 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 220.282651] RAX: ffffffffffffffda RBX: 00007f82683df588 RCX: 00007f8282a4f8bf [ 220.282655] RDX: 00007f82683df4d0 RSI: 00000000c0186444 RDI: 0000000000000018 [ 220.282659] RBP: 00007f82683df4d0 R08: 00007f82683df5e0 R09: 00007f82683df4b0 [ 220.282663] R10: 00001d04000a0600 R11: 0000000000000246 R12: 00000000c0186444 [ 220.282667] R13: 0000000000000018 R14: 00007f82683df588 R15: 0000000000000003 [ 220.282689] [ 220.282693] irq event stamp: 6232311 [ 220.282697] hardirqs last enabled at (6232319): [] __up_console_sem+0x5e/0x70 [ 220.282704] hardirqs last disabled at (6232326): [] __up_console_sem+0x43/0x70 [ 220.282709] softirqs last enabled at (6232072): [] __irq_exit_rcu+0xf9/0x170 [ 220.282716] softirqs last disabled at (6232061): [<ffffffff97 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2022-50035"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:31Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex\n\nIf amdgpu_cs_vm_handling returns r != 0, then it will unlock the\nbo_list_mutex inside the function amdgpu_cs_vm_handling and again on\namdgpu_cs_parser_fini. This problem results in the following\nuse-after-free problem:\n\n[ 220.280990] ------------[ cut here ]------------\n[ 220.281000] refcount_t: underflow; use-after-free.\n[ 220.281019] WARNING: CPU: 1 PID: 3746 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110\n[ 220.281029] ------------[ cut here ]------------\n[ 220.281415] CPU: 1 PID: 3746 Comm: chrome:cs0 Tainted: G W L ------- --- 5.20.0-0.rc0.20220812git7ebfc85e2cd7.10.fc38.x86_64 #1\n[ 220.281421] Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 4403 04/27/2022\n[ 220.281426] RIP: 0010:refcount_warn_saturate+0xba/0x110\n[ 220.281431] Code: 01 01 e8 79 4a 6f 00 0f 0b e9 42 47 a5 00 80 3d de\n7e be 01 00 75 85 48 c7 c7 f8 98 8e 98 c6 05 ce 7e be 01 01 e8 56 4a\n6f 00 \u003c0f\u003e 0b e9 1f 47 a5 00 80 3d b9 7e be 01 00 0f 85 5e ff ff ff 48\nc7\n[ 220.281437] RSP: 0018:ffffb4b0d18d7a80 EFLAGS: 00010282\n[ 220.281443] RAX: 0000000000000026 RBX: 0000000000000003 RCX: 0000000000000000\n[ 220.281448] RDX: 0000000000000001 RSI: ffffffff988d06dc RDI: 00000000ffffffff\n[ 220.281452] RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffb4b0d18d7930\n[ 220.281457] R10: 0000000000000003 R11: ffffa0672e2fffe8 R12: ffffa058ca360400\n[ 220.281461] R13: ffffa05846c50a18 R14: 00000000fffffe00 R15: 0000000000000003\n[ 220.281465] FS: 00007f82683e06c0(0000) GS:ffffa066e2e00000(0000) knlGS:0000000000000000\n[ 220.281470] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 220.281475] CR2: 00003590005cc000 CR3: 00000001fca46000 CR4: 0000000000350ee0\n[ 220.281480] Call Trace:\n[ 220.281485] \u003cTASK\u003e\n[ 220.281490] amdgpu_cs_ioctl+0x4e2/0x2070 [amdgpu]\n[ 220.281806] ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu]\n[ 220.282028] drm_ioctl_kernel+0xa4/0x150\n[ 220.282043] drm_ioctl+0x21f/0x420\n[ 220.282053] ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu]\n[ 220.282275] ? lock_release+0x14f/0x460\n[ 220.282282] ? _raw_spin_unlock_irqrestore+0x30/0x60\n[ 220.282290] ? _raw_spin_unlock_irqrestore+0x30/0x60\n[ 220.282297] ? lockdep_hardirqs_on+0x7d/0x100\n[ 220.282305] ? _raw_spin_unlock_irqrestore+0x40/0x60\n[ 220.282317] amdgpu_drm_ioctl+0x4a/0x80 [amdgpu]\n[ 220.282534] __x64_sys_ioctl+0x90/0xd0\n[ 220.282545] do_syscall_64+0x5b/0x80\n[ 220.282551] ? futex_wake+0x6c/0x150\n[ 220.282568] ? lock_is_held_type+0xe8/0x140\n[ 220.282580] ? do_syscall_64+0x67/0x80\n[ 220.282585] ? lockdep_hardirqs_on+0x7d/0x100\n[ 220.282592] ? do_syscall_64+0x67/0x80\n[ 220.282597] ? do_syscall_64+0x67/0x80\n[ 220.282602] ? lockdep_hardirqs_on+0x7d/0x100\n[ 220.282609] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[ 220.282616] RIP: 0033:0x7f8282a4f8bf\n[ 220.282639] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10\n00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00\n0f 05 \u003c89\u003e c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00\n00\n[ 220.282644] RSP: 002b:00007f82683df410 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\n[ 220.282651] RAX: ffffffffffffffda RBX: 00007f82683df588 RCX: 00007f8282a4f8bf\n[ 220.282655] RDX: 00007f82683df4d0 RSI: 00000000c0186444 RDI: 0000000000000018\n[ 220.282659] RBP: 00007f82683df4d0 R08: 00007f82683df5e0 R09: 00007f82683df4b0\n[ 220.282663] R10: 00001d04000a0600 R11: 0000000000000246 R12: 00000000c0186444\n[ 220.282667] R13: 0000000000000018 R14: 00007f82683df588 R15: 0000000000000003\n[ 220.282689] \u003c/TASK\u003e\n[ 220.282693] irq event stamp: 6232311\n[ 220.282697] hardirqs last enabled at (6232319): [\u003cffffffff9718cd7e\u003e] __up_console_sem+0x5e/0x70\n[ 220.282704] hardirqs last disabled at (6232326): [\u003cffffffff9718cd63\u003e] __up_console_sem+0x43/0x70\n[ 220.282709] softirqs last enabled at (6232072): [\u003cffffffff970ff669\u003e] __irq_exit_rcu+0xf9/0x170\n[ 220.282716] softirqs last disabled at (6232061): [\u003cffffffff97\n---truncated---",
"id": "GHSA-qj8j-993w-xq64",
"modified": "2025-06-18T12:30:44Z",
"published": "2025-06-18T12:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50035"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1b38e3b423f0bb41ee6abae5ca9deec1546ba227"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bbca24d0a3c11193bafb9e174f89f52a379006e3"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.