CVE-2026-53293— drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 17
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8361e3f7882876d98ba98cae0d3149450dd80912< 8c4254c8f5836e77ae83e7fc037f02b69f7a0977 | affected |
9e823f307074c0f82b5f6044943b0086e3079bed< 61957c2e467b39b528a290016367d32a433fa846 | affected | ||
9e823f307074c0f82b5f6044943b0086e3079bed< a31c3feb54b15a90232e497ad0e27e8a82052d8d | affected | ||
9e823f307074c0f82b5f6044943b0086e3079bed< 5c29d20470d4566d1b68df57097d642d01f8b427 | affected | ||
9e823f307074c0f82b5f6044943b0086e3079bed< 0ef196a208385b7d7da79f411c161b04e97283e2 | affected | ||
17a98c942cb106ec08564e8f43b5470a4dd5d3f6 | affected | ||
9a98563345697bdb1d3410ff428473b2e781f4db | affected | ||
6.6.55< 6.6.141 | affected | ||
| … +9 more rows | |||
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I. Basic Information for CVE-2026-53293
Vulnerability Information
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Vulnerability Title
drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的操作系统Linux所使用的内核。 Linux kernel 6.12版本存在安全漏洞，该漏洞源于AMDGPU_INFO_READ_MMR_REG代码中存在多个问题包括重置信号量和mm_lock之间的顺序错误、在持有重置信号量时分配内存可能导致死锁以及使用down_read_trylock()而非等待重置完成。
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
II. Public POCs for CVE-2026-53293
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-53293 (5)
Same Patch Batch · Linux · 2026-06-26 · 47 CVEs total
| CVE-2026-53309 | 9.8 CRITICAL | ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison |
| CVE-2026-53322 | 8.8 HIGH | vfio/pci: Clean up DMABUFs before disabling function |
| CVE-2026-53281 | 8.8 HIGH | iommu/vt-d: Avoid NULL pointer dereference or refcount corruption |
| CVE-2026-53300 | 7.8 HIGH | net: enetc: fix NTMP DMA use-after-free issue |
| CVE-2026-53290 | 7.8 HIGH | drm/xe/eustall: Fix drm_dev_put called before stream disable in close |
| CVE-2026-53284 | 7.5 HIGH | btrfs: only release the dirty pages io tree after successful writes |
| CVE-2026-53278 | arm_mpam: Check whether the config array is allocated before destroying it | |
| CVE-2026-53289 | ice: fix NULL pointer dereference in ice_reset_all_vfs() | |
| CVE-2026-53283 | iommu/amd: Bounds-check devid in __rlookup_amd_iommu() | |
| CVE-2026-53280 | iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done() | |
| CVE-2026-53282 | x86/kexec: Push kjump return address even for non-kjump kexec | |
| CVE-2026-53279 | drm/gma500/oaktrail_lvds: fix hang on init failure | |
| CVE-2026-53292 | net: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind | |
| CVE-2026-53291 | ALSA: hda/conexant: Fix missing error check for jack detection | |
| CVE-2026-53294 | mailbox: mailbox-test: don't free the reused channel | |
| CVE-2026-53295 | mailbox: add sanity check for channel array | |
| CVE-2026-53296 | mailbox: mailbox-test: free channels on probe error | |
| CVE-2026-53297 | net: mana: Guard mana_remove against double invocation | |
| CVE-2026-53298 | net: airoha: Move ndesc initialization at end of airoha_qdma_init_rx_queue() | |
| CVE-2026-53299 | net: airoha: Move ndesc initialization at end of airoha_qdma_init_tx() |
Showing top 20 of 47 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected - CVE-2026-53358
Bluetooth: L2CAP: use chan timer to close channels in cleanu
Same vendor: Linux
- CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected - CVE-2026-53358
Bluetooth: L2CAP: use chan timer to close channels in cleanu
V. Comments for CVE-2026-53293
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