138 lines
11 KiB
JSON
138 lines
11 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2025-38598",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2025-04-16T04:51:24.028Z",
|
|
"datePublished": "2025-08-19T17:03:33.308Z",
|
|
"dateUpdated": "2026-08-05T12:03:19.380Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T12:03:19.380Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix use-after-free in amdgpu_userq_suspend+0x51a/0x5a0\n\n[ +0.000020] BUG: KASAN: slab-use-after-free in amdgpu_userq_suspend+0x51a/0x5a0 [amdgpu]\n[ +0.000817] Read of size 8 at addr ffff88812eec8c58 by task amd_pci_unplug/1733\n\n[ +0.000027] CPU: 10 UID: 0 PID: 1733 Comm: amd_pci_unplug Tainted: G W 6.14.0+ #2\n[ +0.000009] Tainted: [W]=WARN\n[ +0.000003] Hardware name: ASUS System Product Name/ROG STRIX B550-F GAMING (WI-FI), BIOS 1401 12/03/2020\n[ +0.000004] Call Trace:\n[ +0.000004] <TASK>\n[ +0.000003] dump_stack_lvl+0x76/0xa0\n[ +0.000011] print_report+0xce/0x600\n[ +0.000009] ? srso_return_thunk+0x5/0x5f\n[ +0.000006] ? kasan_complete_mode_report_info+0x76/0x200\n[ +0.000007] ? kasan_addr_to_slab+0xd/0xb0\n[ +0.000006] ? amdgpu_userq_suspend+0x51a/0x5a0 [amdgpu]\n[ +0.000707] kasan_report+0xbe/0x110\n[ +0.000006] ? amdgpu_userq_suspend+0x51a/0x5a0 [amdgpu]\n[ +0.000541] __asan_report_load8_noabort+0x14/0x30\n[ +0.000005] amdgpu_userq_suspend+0x51a/0x5a0 [amdgpu]\n[ +0.000535] ? stop_cpsch+0x396/0x600 [amdgpu]\n[ +0.000556] ? stop_cpsch+0x429/0x600 [amdgpu]\n[ +0.000536] ? __pfx_amdgpu_userq_suspend+0x10/0x10 [amdgpu]\n[ +0.000536] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? kgd2kfd_suspend+0x132/0x1d0 [amdgpu]\n[ +0.000542] amdgpu_device_fini_hw+0x581/0xe90 [amdgpu]\n[ +0.000485] ? down_write+0xbb/0x140\n[ +0.000007] ? __mutex_unlock_slowpath.constprop.0+0x317/0x360\n[ +0.000005] ? __pfx_amdgpu_device_fini_hw+0x10/0x10 [amdgpu]\n[ +0.000482] ? __kasan_check_write+0x14/0x30\n[ +0.000004] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? up_write+0x55/0xb0\n[ +0.000007] ? srso_return_thunk+0x5/0x5f\n[ +0.000005] ? blocking_notifier_chain_unregister+0x6c/0xc0\n[ +0.000008] amdgpu_driver_unload_kms+0x69/0x90 [amdgpu]\n[ +0.000484] amdgpu_pci_remove+0x93/0x130 [amdgpu]\n[ +0.000482] pci_device_remove+0xae/0x1e0\n[ +0.000008] device_remove+0xc7/0x180\n[ +0.000008] device_release_driver_internal+0x3d4/0x5a0\n[ +0.000007] device_release_driver+0x12/0x20\n[ +0.000004] pci_stop_bus_device+0x104/0x150\n[ +0.000006] pci_stop_and_remove_bus_device_locked+0x1b/0x40\n[ +0.000005] remove_store+0xd7/0xf0\n[ +0.000005] ? __pfx_remove_store+0x10/0x10\n[ +0.000006] ? __pfx__copy_from_iter+0x10/0x10\n[ +0.000006] ? __pfx_dev_attr_store+0x10/0x10\n[ +0.000006] dev_attr_store+0x3f/0x80\n[ +0.000006] sysfs_kf_write+0x125/0x1d0\n[ +0.000004] ? srso_return_thunk+0x5/0x5f\n[ +0.000005] ? __kasan_check_write+0x14/0x30\n[ +0.000005] kernfs_fop_write_iter+0x2ea/0x490\n[ +0.000005] ? rw_verify_area+0x70/0x420\n[ +0.000005] ? __pfx_kernfs_fop_write_iter+0x10/0x10\n[ +0.000006] vfs_write+0x90d/0xe70\n[ +0.000005] ? srso_return_thunk+0x5/0x5f\n[ +0.000005] ? __pfx_vfs_write+0x10/0x10\n[ +0.000004] ? local_clock+0x15/0x30\n[ +0.000008] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? __kasan_slab_free+0x5f/0x80\n[ +0.000005] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? __kasan_check_read+0x11/0x20\n[ +0.000004] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? fdget_pos+0x1d3/0x500\n[ +0.000007] ksys_write+0x119/0x220\n[ +0.000005] ? putname+0x1c/0x30\n[ +0.000006] ? __pfx_ksys_write+0x10/0x10\n[ +0.000007] __x64_sys_write+0x72/0xc0\n[ +0.000006] x64_sys_call+0x18ab/0x26f0\n[ +0.000006] do_syscall_64+0x7c/0x170\n[ +0.000004] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? __pfx___x64_sys_openat+0x10/0x10\n[ +0.000006] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? __kasan_check_read+0x11/0x20\n[ +0.000003] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? fpregs_assert_state_consistent+0x21/0xb0\n[ +0.000006] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? syscall_exit_to_user_mode+0x4e/0x240\n[ +0.000005] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? do_syscall_64+0x88/0x170\n[ +0.000003] ? srso_return_thunk+0x5/0x5f\n[ +0.000004] ? irqentry_exit+0x43/0x50\n[ +0.000004] ? srso_return_thunk+0x5\n---truncated---"
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerable code is reached through the amdgpu DRM character device (`/dev/dri/renderD*`) via ioctls and the file-close path, requiring local system access. There is no network-facing component.\nAC:L - The attacker controls both sides of the race — arming the eviction-fence workers by allocating BOs and inducing TTM eviction, and freeing `amdgpu_fpriv` by closing the render fd — and can retry the open/allocate/close loop indefinitely at no cost. The path is active by default for any amdgpu client and does not depend on the non-default `amdgpu.user_queue` parameter.\nPR:L - Only an unprivileged local account with render-node access is needed; `AMDGPU_USERQ` and `AMDGPU_GEM_CREATE` are `DRM_RENDER_ALLOW`, and logind/Android ACLs grant `/dev/dri/renderD128` to the logged-in user by default. No root or capability check guards the eviction-fence suspend/restore worker path.\nUI:N - The attacking process performs every step itself — open the render node, create buffer objects, trigger eviction, close the fd. No action by another user is required.\nS:U - The corruption is confined to kernel slab memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a slab use-after-free on a 4096-byte `struct amdgpu_fpriv` (KASAN reports an 8-byte read of freed memory); an attacker who reclaims the slab controls the contents that are read back, yielding a kernel information-disclosure primitive.\nI:H - The freed object contains `work_struct` function pointers and a `timer_list` that the workqueue and timer subsystems subsequently dereference and call, so heap spraying the reclaimed kmalloc-4k object gives control-flow hijack and thus arbitrary kernel modification.\nA:H - Executing a work item and timer out of freed memory reliably causes a kernel oops or panic, as demonstrated by the KASAN slab-use-after-free report, and the race can be re-triggered repeatedly."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "adba0929736a6a2d2780e8e6e4082e42e5ba025c",
|
|
"lessThan": "96f663ae897b3e6ac17ced1d9b9c2ae9f165ad9a",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "adba0929736a6a2d2780e8e6e4082e42e5ba025c",
|
|
"lessThan": "a886d26f2c8f9e3f3c1869ae368d09c75daac553",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "6.16",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "6.16",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.16.1",
|
|
"lessThanOrEqual": "6.16.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.17",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.16",
|
|
"versionEndExcluding": "6.16.1"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.16",
|
|
"versionEndExcluding": "6.17"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/96f663ae897b3e6ac17ced1d9b9c2ae9f165ad9a"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a886d26f2c8f9e3f3c1869ae368d09c75daac553"
|
|
}
|
|
],
|
|
"title": "drm/amdgpu: fix use-after-free in amdgpu_userq_suspend+0x51a/0x5a0",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |