CVE-2026-90333: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: replace forgeable discard filler with a keyed sector marker The discard-block check in dmintegrityrwtag treats a stored tag of all 0xf6 bytes DISCARDFILLER as proof a block was discarded and skips HMAC verification...

CVE-2026-90333: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: replace forgeable discard filler with a keyed sector marker The discard-block check in dmintegrityrwtag treats a stored tag of all 0xf6 bytes DISCARDFILLER as proof a block was discarded and skips HMAC verification...

Linux Kernel Security Vulnerabilities

The Linux kernel version 5.7 contains a security vulnerability. This vulnerability stems from the dm-integrity’s dmintegrityrwtag function’s block discard check. It treats fake padding marks with the value 0xf6 as indicating that a block has been discarded, thereby skipping HMAC verification. An...