CVSS
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: squashfs: Add dictionary size range check to prevent shift-out-of-bounds When an abnormal SquashFS image (COMP_OPTS flag is 1 but dictionary size is 0) is mounted, and performs shift operations using dictionarysize, the shift exponent is -1, causing a shift-out-of-bounds. Detail as below: squashfs_comp_opts(msblk, buffer, length) squashfs_xz_comp_opts() if (comp_opts) n = ffs(opts->dict_size) - 1;<----opts->dict_size=0, n=-1 if (opts->dict_size != (1 << n) && opts->dict_size != (1 << n) + (1 << (n + 1))) <----shift-out-of-bounds Fix it by adding a dictionary size range check before the shift operation.
Засегнати продукти
- Linux Linux: ff750311d30acc9564ef577050794953eee59f01 преди b02948a23455f8190a53887b2d2c13ae1d360cea; ff750311d30acc9564ef577050794953eee59f01 преди 9d9c5c218ea356a1d88765214ad2919605280ab1; ff750311d30acc9564ef577050794953eee59f01 преди 7a1c293e7aa17f1afaee0684e0e931fe23a5a6b1; ff750311d30acc9564ef577050794953eee59f01 преди c68e0068a236f9a7dfc19720bdf11e5d80a85089; ff750311d30acc9564ef577050794953eee59f01 преди 88c673a0bd233df44ca0020da82f4fd3876de27a; ff750311d30acc9564ef577050794953eee59f01 преди 0cb85377daaefb4ce5ce72975f2deb27ee0e0cad; ff750311d30acc9564ef577050794953eee59f01 преди e1ca4e3a380ef3e8f46ce006f1146392e3f32c98; ff750311d30acc9564ef577050794953eee59f01 преди 1f7745fb3580152ca902ef181b605f33cabfb1d0
- Linux Linux: 2.6.39; преди 2.6.39; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък
История
- 18 октомври 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-98636
- https://nvd.nist.gov/vuln/detail/CVE-2026-98636
- https://git.kernel.org/stable/c/b02948a23455f8190a53887b2d2c13ae1d360cea
- https://git.kernel.org/stable/c/9d9c5c218ea356a1d88765214ad2919605280ab1
- https://git.kernel.org/stable/c/7a1c293e7aa17f1afaee0684e0e931fe23a5a6b1
- https://git.kernel.org/stable/c/c68e0068a236f9a7dfc19720bdf11e5d80a85089
- https://git.kernel.org/stable/c/88c673a0bd233df44ca0020da82f4fd3876de27a
- https://git.kernel.org/stable/c/0cb85377daaefb4ce5ce72975f2deb27ee0e0cad
- https://git.kernel.org/stable/c/e1ca4e3a380ef3e8f46ce006f1146392e3f32c98
- https://git.kernel.org/stable/c/1f7745fb3580152ca902ef181b605f33cabfb1d0