CVE-2026-53036 bpf, arm64: Fix off-by-one in check_imm signed range check

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in checkimm signed range check checkimmbits, imm is used in the arm64 BPF JIT to verify that a branch displacement in arm64 instruction units fits into the signed N-bit immediate field of a B, B.cond or...

PT-2026-51930

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An off-by-one error exists in the arm64 BPF JIT Just-In-Time compiler within the check immbits, imm macro. This macro is used to verify that a branch displacement fits into the signed...