7.8

CVE-2022-50328: jbd2: fix potential use-after-free in jbd2_fc_wait_bufs

Modified
AliasesUBUNTU-CVE-2022-50328DEBIAN-CVE-2022-50328
Published 15-09-2025Last modified 15-10-2026

Vulnerability summary

CVE-2022-50328 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix potential use-after-free in jbd2_fc_wait_bufs In 'jbd2_fc_wait_bufs' use 'bh' after put buffer head reference count which may lead to use-after-free. So judge buffer if uptodate before put buffer head reference count.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu102 products
  • linux< 5.15.0-60.66
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1030.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ff780b91efe901b8eecd8114785abae5341820ad, < 1d4d16daec2a6689b6d3fbfc7d2078643adc6619 | ≥ ff780b91efe901b8eecd8114785abae5341820ad, < d11d2ded293976a1a0d9d9471827a44dc9e3c63f | ≥ ff780b91efe901b8eecd8114785abae5341820ad, < 2e6d9f381c1ed844531a577783fc352de7a44c8a | ≥ ff780b91efe901b8eecd8114785abae5341820ad, < effd9b3c029ecdd853a11933dcf857f5a7ca8c3d | ≥ ff780b91efe901b8eecd8114785abae5341820ad, < 243d1a5d505d0b0460c9af0ad56ed4a56ef0bebd | 5.10
  • linux_kernel< 5.10.150 | ≥ 5.11, < 5.15.75 | ≥ 5.16, < 5.19.17 | ≥ 6.0, < 6.0.3
Debian1 product
  • linux< 6.0.3-1

3 vendors · 105 products

References

9 links