CVE-2026-99098: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix buffer overflow in inline mode with large tag size In inline mode, dm_integrity_check and dm_integrity_inline_recheck compute the checksum of each block into an on-stack buffer of HASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result with zeroes up to the tag size, so if the tag size is larger than HASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With CONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the first read. Enlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5 ("dm integrity: fix a crash with unusually large tag size") did for integrity_metadata. Note that this is not a security bug because the buffer overflow can only be triggered by root.

Засегнати продукти

• Linux Linux: fb0987682c629c1d2c476f35f6fde405a5e304a4 преди 3c7aad85aeb9e28386672e3a009aa2e61f751b86; fb0987682c629c1d2c476f35f6fde405a5e304a4 преди 4f0ee735dc68e3e6c4dd9a666d7f7047163c4165; fb0987682c629c1d2c476f35f6fde405a5e304a4 преди f49cd7820cd0a96f20e1aa2708adb002124e38a7; fb0987682c629c1d2c476f35f6fde405a5e304a4 преди 764b683a6180fd72c931c13fea98d383506a3475
• Linux Linux: 6.11; преди 6.11; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.2.11 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-99098
• https://nvd.nist.gov/vuln/detail/CVE-2026-99098
• https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86
• https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165
• https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7
• https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475