linux: In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbAllocAG S...
CVE-2022-50567 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50567, released October 22, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbAllocAG Syzbot found a crash : UBSAN: shift-out-of-bounds in dbAllocAG. The underlying bug is the missing check of bmp->db_agl2size. The field can be greater than 64 and trigger the shift-out-of-bounds. Fix this bug by adding a check of bmp->db_agl2size in dbMount since this field is used in many following functions. The upper bound for this field is L2MAXL2SIZE - L2MAXAG, thanks for the help of Dave Kleikamp. Note that, for maintenance, I reorganized error handling code of dbMount.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.4-1 | DEBIAN-CVE-2022-50567 | Oct 22, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.4-1 | DEBIAN-CVE-2022-50567 | Oct 22, 2025 |
| linux · Debian 14 | 6.1.4-1 | DEBIAN-CVE-2022-50567 | Oct 22, 2025 |
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