CVE-2023-53526 — Improper Control of a Resource Through its Lifetime in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 1
Description
In the Linux kernel, the following vulnerability has been resolved:
jbd2: check 'jh->b_transaction' before removing it from checkpoint
Following process will corrupt ext4 image:
Step 1:
jbd2_journal_commit_transaction
__jbd2_journal_insert_checkpoint(jh, commit_transaction)
// Put jh into trans1->t_checkpoint_list
journal->j_checkpoint_transactions = commit_transaction
// Put trans1 into journal->j_checkpoint_transactions
Step 2:
do_get_write_access
test_clear_buffer_dirty(bh) // clear buffer…
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
▶CVEListV5linux/linuxb832174b7f89df3ebab02f5b485d00127a0e1a6e — ef5fea70e5915afd64182d155e72bfb4f275e1fc+5
Patches
🔴Vulnerability Details
2OSV▶
CVE-2023-53526: In the Linux kernel, the following vulnerability has been resolved: jbd2: check 'jh->b_transaction' before removing it from checkpoint Following proce↗2025-10-01
GHSA▶
GHSA-rhfj-r57g-8474: In the Linux kernel, the following vulnerability has been resolved:
jbd2: check 'jh->b_transaction' before removing it from checkpoint
Following pro↗2025-10-01