Bug 2073941 (CVE-2022-28796) - CVE-2022-28796 kernel: a use-after-free caused by a transaction_t race condition
Summary: CVE-2022-28796 kernel: a use-after-free caused by a transaction_t race condition
Status: NEW
Alias: CVE-2022-28796
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2073942 2074079 2074080 2074081 2074082
Blocks: 2073943
TreeView+ depends on / blocked
Reported: 2022-04-11 08:12 UTC by Marian Rehak
Modified: 2023-04-01 08:43 UTC (History)
45 users (show)

Fixed In Version: kernel 5.17.1
Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in the Linux kernel’s journaling layer of the ext4 and OCFS2 file system functionality in the way a user can trigger a race condition during writing to the file system. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Clone Of:
Last Closed:

Attachments (Terms of Use)

Description Marian Rehak 2022-04-11 08:12:25 UTC
jbd2_journal_wait_updates in fs/jbd2/transaction.c in the Linux kernel before 5.17.1 has a use-after-free caused by a transaction_t race condition.



Comment 1 Marian Rehak 2022-04-11 08:12:56 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2073942]

Comment 7 Justin M. Forbes 2022-04-13 21:29:22 UTC
The fix The patch which created this issue was in 5.17-rc3 and later kernels, and the fix was brought back into 5.17.1, so stable Fedora releases are not impacted, and the Fedora 36 beta was fixed with the 5.17.1 kernel update.

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