CVE-2022-50436 — Deadlock in Linux

CWE-833 — Deadlock5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 98.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature") extended the scope of the transaction in ext4_unlink() too far, making it include the call to ext4_find_entry(). However, ext4_find_entry() can deadlock when called from within a transaction because it may need to set up the directory's encryption key. Fix this by restoring the transaction to its …

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel5.10.1 — 5.10.163+4
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linuxa80f7fcf18672ae4971a6b713b58c0d389aa99fe — 23ad034760dd38e12b0e0e1b28b9629f330810a1+5
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2022-50436: In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ex↗2025-10-01
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GHSA
GHSA-h235-mqh4-6cp2: In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("↗2025-10-01
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📋Vendor Advisories

2
Red Hat
kernel: ext4: don't set up encryption key during jbd2 transaction↗2025-10-01
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Debian
CVE-2022-50436: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: don't...↗2022
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CVE-2022-50436 — Deadlock in Linux | cvebase