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CVE-2024-57921— drm/amdgpu: Add a lock when accessing the buddy trim function

Quick assessment

Affected

Linux Linux

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于amddrm_buddy模块的trim函数未正确加锁，导致竞争条件。

CVSS 7.8 · High EPSS 0.15% · P4 Updated Aug 05, 2026

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 6

Vendor	Product	Version Range	Status
Linux	Linux	`4a5ad08f537703c35cf7cc29845381805c891d9b< 758e3c3054b65336cf0c5f240221f63b4fb98478`	affected
		`4a5ad08f537703c35cf7cc29845381805c891d9b< 75c8b703e5bded1e33b08fb09b829e7c2c1ed50a`	affected
		`6.11`	affected
		`< 6.11`	unaffected
		`6.12.10≤ 6.12.*`	unaffected
		`6.13≤ *`	unaffected

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I. Basic Information for CVE-2024-57921

Vulnerability Information

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Vulnerability Title

drm/amdgpu: Add a lock when accessing the buddy trim function

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Add a lock when accessing the buddy trim function When running YouTube videos and Steam games simultaneously, the tester found a system hang / race condition issue with the multi-display configuration setting. Adding a lock to the buddy allocator's trim function would be the solution. <log snip> [ 7197.250436] general protection fault, probably for non-canonical address 0xdead000000000108 [ 7197.250447] RIP: 0010:__alloc_range+0x8b/0x340 [amddrm_buddy] [ 7197.250470] Call Trace: [ 7197.250472] <TASK> [ 7197.250475] ? show_regs+0x6d/0x80 [ 7197.250481] ? die_addr+0x37/0xa0 [ 7197.250483] ? exc_general_protection+0x1db/0x480 [ 7197.250488] ? drm_suballoc_new+0x13c/0x93d [drm_suballoc_helper] [ 7197.250493] ? asm_exc_general_protection+0x27/0x30 [ 7197.250498] ? __alloc_range+0x8b/0x340 [amddrm_buddy] [ 7197.250501] ? __alloc_range+0x109/0x340 [amddrm_buddy] [ 7197.250506] amddrm_buddy_block_trim+0x1b5/0x260 [amddrm_buddy] [ 7197.250511] amdgpu_vram_mgr_new+0x4f5/0x590 [amdgpu] [ 7197.250682] amdttm_resource_alloc+0x46/0xb0 [amdttm] [ 7197.250689] ttm_bo_alloc_resource+0xe4/0x370 [amdttm] [ 7197.250696] amdttm_bo_validate+0x9d/0x180 [amdttm] [ 7197.250701] amdgpu_bo_pin+0x15a/0x2f0 [amdgpu] [ 7197.250831] amdgpu_dm_plane_helper_prepare_fb+0xb2/0x360 [amdgpu] [ 7197.251025] ? try_wait_for_completion+0x59/0x70 [ 7197.251030] drm_atomic_helper_prepare_planes.part.0+0x2f/0x1e0 [ 7197.251035] drm_atomic_helper_prepare_planes+0x5d/0x70 [ 7197.251037] drm_atomic_helper_commit+0x84/0x160 [ 7197.251040] drm_atomic_nonblocking_commit+0x59/0x70 [ 7197.251043] drm_mode_atomic_ioctl+0x720/0x850 [ 7197.251047] ? __pfx_drm_mode_atomic_ioctl+0x10/0x10 [ 7197.251049] drm_ioctl_kernel+0xb9/0x120 [ 7197.251053] ? srso_alias_return_thunk+0x5/0xfbef5 [ 7197.251056] drm_ioctl+0x2d4/0x550 [ 7197.251058] ? __pfx_drm_mode_atomic_ioctl+0x10/0x10 [ 7197.251063] amdgpu_drm_ioctl+0x4e/0x90 [amdgpu] [ 7197.251186] __x64_sys_ioctl+0xa0/0xf0 [ 7197.251190] x64_sys_call+0x143b/0x25c0 [ 7197.251193] do_syscall_64+0x7f/0x180 [ 7197.251197] ? srso_alias_return_thunk+0x5/0xfbef5 [ 7197.251199] ? amdgpu_display_user_framebuffer_create+0x215/0x320 [amdgpu] [ 7197.251329] ? drm_internal_framebuffer_create+0xb7/0x1a0 [ 7197.251332] ? srso_alias_return_thunk+0x5/0xfbef5 (cherry picked from commit 3318ba94e56b9183d0304577c74b33b6b01ce516)

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Linux kernel 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于amddrm_buddy模块的trim函数未正确加锁，导致竞争条件。

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Linux	Linux	4a5ad08f537703c35cf7cc29845381805c891d9b ~ 758e3c3054b65336cf0c5f240221f63b4fb98478	-
Linux	Linux	6.11	-

II. Public POCs for CVE-2024-57921

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2024-57921

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Patches & Fixes for CVE-2024-57921 (2)

https://www.cve.org/CVERecord?id=CVE-2024-57921

Same Patch Batch · Linux · 2025-01-19 · 47 CVEs total

CVE-2024-57929	7.8 HIGH	dm array: fix releasing a faulty array block twice in dm_array_cursor_end
CVE-2024-57926	7.8 HIGH	drm/mediatek: Set private->all_drm_private[i]->drm to NULL if mtk_drm_bind returns err
CVE-2025-21631	7.8 HIGH	block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()
CVE-2025-21652	7.8 HIGH	ipvlan: Fix use-after-free in ipvlan_get_iflink().
CVE-2024-57918	7.8 HIGH	drm/amd/display: fix page fault due to max surface definition mismatch
CVE-2025-21646	7.5 HIGH	afs: Fix the maximum cell name length
CVE-2025-21647	7.3 HIGH	sched: sch_cake: add bounds checks to host bulk flow fairness counts
CVE-2025-21637	7.1 HIGH	sctp: sysctl: udp_port: avoid using current->nsproxy
CVE-2025-21638	7.1 HIGH	sctp: sysctl: auth_enable: avoid using current->nsproxy
CVE-2025-21650	7.1 HIGH	net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
CVE-2025-21640	7.1 HIGH	sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy
CVE-2024-57923		btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path
CVE-2024-57908		iio: imu: kmx61: fix information leak in triggered buffer
CVE-2024-57928		netfs: Fix enomem handling in buffered reads
CVE-2024-57914		usb: typec: tcpci: fix NULL pointer issue on shared irq case
CVE-2024-57913		usb: gadget: f_fs: Remove WARN_ON in functionfs_bind
CVE-2024-57912		iio: pressure: zpa2326: fix information leak in triggered buffer
CVE-2024-57911		iio: dummy: iio_simply_dummy_buffer: fix information leak in triggered buffer
CVE-2024-57910		iio: light: vcnl4035: fix information leak in triggered buffer
CVE-2024-57904		iio: adc: at91: call input_free_device() on allocated iio_dev

Showing top 20 of 47 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux

Same vendor: Linux

V. Comments for CVE-2024-57921

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2024-57921— drm/amdgpu: Add a lock when accessing the buddy trim function

Quick assessment

Possible ATT&CK Techniques 1 AI

Affected Version Matrix 6

I. Basic Information for CVE-2024-57921

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2024-57921

III. Intelligence Information for CVE-2024-57921

Patches & Fixes for CVE-2024-57921 (2)

Same Patch Batch · Linux · 2025-01-19 · 47 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2024-57921

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