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CVE-2024-41080— io_uring: fix possible deadlock in io_register_iowq_max_workers()

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io_register_iowq_max_workers函数中，由于锁的获取顺序不正确，可能导致潜在的死锁情况。

AI Predicted 5.5 Difficulty: Easy EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 2b188cc1bb857a9d4701ae59aa7768b5124e262e< b17397a0a5c56e111f61cb5b77d162664dc00de9 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 97ed7ff58de66c544692b3c2b988f3f594348de0 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< fdacd09f2ddf7a00787291f08ee48c0421e5b709 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 950ac86cff338ab56e2eaf611f4936ee34893b63 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< b571a367502c7ef94c688ef9c7f7d69a2ce3bcca affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 73254a297c2dd094abec7c9efee32455ae875bdf affected
5.1 affected
< 5.1 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-41080

Vulnerability Information
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Vulnerability Title
io_uring: fix possible deadlock in io_register_iowq_max_workers()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix possible deadlock in io_register_iowq_max_workers() The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6ee ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation. To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call. This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock.
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io_register_iowq_max_workers函数中，由于锁的获取顺序不正确，可能导致潜在的死锁情况。
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 2b188cc1bb857a9d4701ae59aa7768b5124e262e ~ b17397a0a5c56e111f61cb5b77d162664dc00de9 -
Linux Linux 5.1 -

II. Public POCs for CVE-2024-41080

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III. Intelligence Information for CVE-2024-41080

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Other References for CVE-2024-41080 (2)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-41015 7.8 HIGH ocfs2: add bounds checking to ocfs2_check_dir_entry()
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41017 7.8 HIGH jfs: don't walk off the end of ealist
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41069 7.8 HIGH ASoC: topology: Fix references to freed memory

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41080

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