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CVE-2025-21849— drm/i915/gt: Use spin_lock_irqsave() in interruptible context

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，该漏洞源于在可中断上下文中使用spin_lock，可能导致死锁。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 2f2cc53b5fe7022f3ae602eb24573d52f8740959< 2bf1f4c129db7a10920655b000f0292f1ee509c2 affected
2f2cc53b5fe7022f3ae602eb24573d52f8740959< 47ae46ac5407646420e06b78e0dad331e56a4bb4 affected
2f2cc53b5fe7022f3ae602eb24573d52f8740959< e49477f7f78598295551d486ecc7f020d796432e affected
6.9 affected
< 6.9 unaffected
6.12.17≤ 6.12.* unaffected
6.13.5≤ 6.13.* unaffected
6.14≤ * unaffected
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I. Basic Information for CVE-2025-21849

Vulnerability Information
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Vulnerability Title
drm/i915/gt: Use spin_lock_irqsave() in interruptible context
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Use spin_lock_irqsave() in interruptible context spin_lock/unlock() functions used in interrupt contexts could result in a deadlock, as seen in GitLab issue #13399, which occurs when interrupt comes in while holding a lock. Try to remedy the problem by saving irq state before spin lock acquisition. v2: add irqs' state save/restore calls to all locks/unlocks in signal_irq_work() execution (Maciej) v3: use with spin_lock_irqsave() in guc_lrc_desc_unpin() instead of other lock/unlock calls and add Fixes and Cc tags (Tvrtko); change title and commit message (cherry picked from commit c088387ddd6482b40f21ccf23db1125e8fa4af7e)
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于在可中断上下文中使用spin_lock，可能导致死锁。
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 2f2cc53b5fe7022f3ae602eb24573d52f8740959 ~ 2bf1f4c129db7a10920655b000f0292f1ee509c2 -
Linux Linux 6.9 -

II. Public POCs for CVE-2025-21849

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III. Intelligence Information for CVE-2025-21849

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Patches & Fixes for CVE-2025-21849 (1)

Other References for CVE-2025-21849 (2)

Same Patch Batch · Linux · 2025-03-12 · 26 CVEs total

CVE-2024-58087 9.8 CRITICAL ksmbd: fix racy issue from session lookup and expire
CVE-2025-21850 9.8 CRITICAL nvmet: Fix crash when a namespace is disabled
CVE-2025-21855 8.6 HIGH ibmvnic: Don't reference skb after sending to VIOS
CVE-2024-58089 7.8 HIGH btrfs: fix double accounting race when btrfs_run_delalloc_range() failed
CVE-2025-21858 7.8 HIGH geneve: Fix use-after-free in geneve_find_dev().
CVE-2025-21851 7.8 HIGH bpf: Fix softlockup in arena_map_free on 64k page kernel
CVE-2025-21864 7.8 HIGH tcp: drop secpath at the same time as we currently drop dst
CVE-2025-21844 7.5 HIGH smb: client: Add check for next_buffer in receive_encrypted_standard()
CVE-2025-21852 net: Add rx_skb of kfree_skb to raw_tp_null_args[].
CVE-2025-21865 gtp: Suppress list corruption splat in gtp_net_exit_batch_rtnl().
CVE-2024-58088 bpf: Fix deadlock when freeing cgroup storage
CVE-2025-21845 mtd: spi-nor: sst: Fix SST write failure
CVE-2025-21846 acct: perform last write from workqueue
CVE-2025-21848 nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()
CVE-2025-21847 ASoC: SOF: stream-ipc: Check for cstream nullity in sof_ipc_msg_data()
CVE-2025-21863 io_uring: prevent opcode speculation
CVE-2025-21853 bpf: avoid holding freeze_mutex during mmap operation
CVE-2025-21866 powerpc/code-patching: Fix KASAN hit by not flagging text patching area as VM_ALLOC
CVE-2025-21854 sockmap, vsock: For connectible sockets allow only connected
CVE-2025-21856 s390/ism: add release function for struct device

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux