CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: nfsd: validate symlink target length in NFSv4 CREATE nfsd4_decode_create() accepts an unbounded cr_datalen from the wire for NF4LNK symlink targets, allowing a client to force a kmalloc of up to the maximum RPC payload size (several MiB) per COMPOUND op that persists until compound teardown. The VFS rejects oversized targets with ENAMETOOLONG, but the allocation has already occurred. Reject cr_datalen == 0 early with nfserr_inval and cr_datalen greater than NFS4_MAXPATHLEN (PATH_MAX) with nfserr_nametoolong to bound the allocation.
Засегнати продукти
- Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 36011308b3f01ce7dc9954f3cefcbb5291af9f95; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 888dad4b557352cf85be31613407b5ba51ad07d1; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 8661d3cb38fd148947e57dbc0871fd4d3fa33bbf; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 3ef5e7a01a4d74995a65496bc9166d1e980a4355; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди b24843ea3de1676b29902457b38507c95a80649b; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 895a485cd3758031ef9993c0d53cf19ce8fb4ccc; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 45ec115cbfecb4b3cfab7fca6f73d1b60696a25a; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 041f57056e5fb9c80adc088269322d2c61074406
- Linux Linux: 2.6.12; преди 2.6.12; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; 7.3 до *
История
- 11 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-89699
- https://nvd.nist.gov/vuln/detail/CVE-2026-89699
- https://git.kernel.org/stable/c/36011308b3f01ce7dc9954f3cefcbb5291af9f95
- https://git.kernel.org/stable/c/888dad4b557352cf85be31613407b5ba51ad07d1
- https://git.kernel.org/stable/c/8661d3cb38fd148947e57dbc0871fd4d3fa33bbf
- https://git.kernel.org/stable/c/3ef5e7a01a4d74995a65496bc9166d1e980a4355
- https://git.kernel.org/stable/c/b24843ea3de1676b29902457b38507c95a80649b
- https://git.kernel.org/stable/c/895a485cd3758031ef9993c0d53cf19ce8fb4ccc
- https://git.kernel.org/stable/c/45ec115cbfecb4b3cfab7fca6f73d1b60696a25a
- https://git.kernel.org/stable/c/041f57056e5fb9c80adc088269322d2c61074406