CVE-2026-98446: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: xfs: don't let hidden_space go negative in xfs_metafile_resv_init LOLLM points out that if the amount of fdblocks that we can reserve for a metadata btree file goes below the space already used by that file, then the hidden_space subtraction can underflow, causing xfs_dec_fdblocks to subtract a huge amount of space. We never want the target to be less than the used sapce, so fix the logic that adjusts dblocks_avail downwards. Also fix an error in the adjacent comment.

Засегнати продукти

• Linux Linux: 1df8d75030b787a9fae270b59b93eef809dd2011 преди 930a9c1c321efdaa3e7f8caecb0479cee3baf342; 1df8d75030b787a9fae270b59b93eef809dd2011 преди f0d8352a39f4a2e329ae45b71bb0d49e2ca0a6dc; 1df8d75030b787a9fae270b59b93eef809dd2011 преди 476582d754cdc5110f806001417fea6c77824c13
• Linux Linux: 6.15; преди 6.15; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98446
• https://nvd.nist.gov/vuln/detail/CVE-2026-98446
• https://git.kernel.org/stable/c/930a9c1c321efdaa3e7f8caecb0479cee3baf342
• https://git.kernel.org/stable/c/f0d8352a39f4a2e329ae45b71bb0d49e2ca0a6dc
• https://git.kernel.org/stable/c/476582d754cdc5110f806001417fea6c77824c13