7.8

CVE-2022-50581: hfs: fix OOB Read in __hfs_brec_find

Deferred
AliasesUBUNTU-CVE-2022-50581DEBIAN-CVE-2022-50581
Published 22-10-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-50581 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 8% 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
0.18%
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 5 · Related 5
SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4189-1SUSE-SU-2025:4320-1

Timeline

  1. 22-10-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: hfs: fix OOB Read in __hfs_brec_find Syzbot reported a OOB read bug: ================================================================== BUG: KASAN: slab-out-of-bounds in hfs_strcmp+0x117/0x190 fs/hfs/string.c:84 Read of size 1 at addr ffff88807eb62c4e by task kworker/u4:1/11 CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.0-rc6-syzkaller-00308-g644e9524388a #0 Workqueue: writeback wb_workfn (flush-7:0) Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 hfs_strcmp+0x117/0x190 fs/hfs/string.c:84 __hfs_brec_find+0x213/0x5c0 fs/hfs/bfind.c:75 hfs_brec_find+0x276/0x520 fs/hfs/bfind.c:138 hfs_write_inode+0x34c/0xb40 fs/hfs/inode.c:462 write_inode fs/fs-writeback.c:1440 [inline] If the input inode of hfs_write_inode() is incorrect: struct inode struct hfs_inode_info struct hfs_cat_key struct hfs_name u8 len # len is greater than HFS_NAMELEN(31) which is the maximum length of an HFS filename OOB read occurred: hfs_write_inode() hfs_brec_find() __hfs_brec_find() hfs_cat_keycmp() hfs_strcmp() # OOB read occurred due to len is too large Fix this by adding a Check on len in hfs_write_inode() before calling hfs_brec_find().

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% 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

No weakness data has been published for this record.

Affected systems

Version check

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

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8c40f2dbae603ef0bd21e87c63f54ec59fd88256 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c886c10a6eddb99923b315f42bf63f448883ef9a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2344f17c0a89c181ab1a9fef57fd8c3bddfd6e30 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 90103ccb6e60aa4efe48993d23d6a528472f2233 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 4fd3a11804c8877ff11fec59c5c53f1635331e3e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 367296925c7625c3969d2a78d7a3e1dee161beb5 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e9e692917c6e10a7066c7a6d092dcdc3d4e329f3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bfc9d8f27f89717431a6aecce42ae230b437433f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8d824e69d9f3fa3121b2dda25053bae71e2460d2 | 2.6.12

3 vendors · 122 products

References

13 links
Show all 13 references