CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и след действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: Squashfs: check block offset is not negative If a negative offset is read off disk (for example the offset into the decompressed fragment block), this will cause squashfs_copy_data() to perform an out of bounds access. Fix by checking if offset is negative, and returning 0. This matches existing behaviour where an offset beyond the block returns 0 bytes copied. To trigger this out of bounds access requires a crafted Squashfs filesystem and CAP_SYS_ADMIN to mount it. Unprivileged users will not be able to mount such a filesystem, but once mounted, an unprivileged user can trigger the out of bounds access by reading the crafted file with the negative offset.
Засегнати продукти
- Linux Linux: f400e12656ab518be107febfe2315fb1eab5a342 преди b169185d5c672b989985c6c2e38cafab2548ba88; f400e12656ab518be107febfe2315fb1eab5a342 преди c2a126fca820ae74872da28de68dc74d4595dc4b; f400e12656ab518be107febfe2315fb1eab5a342 преди 95dadf366c117dcdca78a570e6832071deab1ecd; f400e12656ab518be107febfe2315fb1eab5a342 преди 3d2f0cb66c909ea2312cdef465165bb9a3ba2d84; f400e12656ab518be107febfe2315fb1eab5a342 преди bbb2218eb072b0a15dc063929200183bd23c2344; f400e12656ab518be107febfe2315fb1eab5a342 преди d0a3729d464fcf516416a41cf304c0c92126ee03; f400e12656ab518be107febfe2315fb1eab5a342 преди e4afd90bc7bf3dd477970c6c42bdd29ad3fda7fe; f400e12656ab518be107febfe2315fb1eab5a342 преди e300eb5002925b29be803d2661af07266cfa267e
- Linux Linux: 2.6.29; преди 2.6.29; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък
История
- 17 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90203
- https://nvd.nist.gov/vuln/detail/CVE-2026-90203
- https://git.kernel.org/stable/c/b169185d5c672b989985c6c2e38cafab2548ba88
- https://git.kernel.org/stable/c/c2a126fca820ae74872da28de68dc74d4595dc4b
- https://git.kernel.org/stable/c/95dadf366c117dcdca78a570e6832071deab1ecd
- https://git.kernel.org/stable/c/3d2f0cb66c909ea2312cdef465165bb9a3ba2d84
- https://git.kernel.org/stable/c/bbb2218eb072b0a15dc063929200183bd23c2344
- https://git.kernel.org/stable/c/d0a3729d464fcf516416a41cf304c0c92126ee03
- https://git.kernel.org/stable/c/e4afd90bc7bf3dd477970c6c42bdd29ad3fda7fe
- https://git.kernel.org/stable/c/e300eb5002925b29be803d2661af07266cfa267e