CVE-2023-53121

The CVE-2023-53121 vulnerability affects the Linux kernel where tcp_rtx_synack() can be invoked from process context, allowing tcp_make_synack() to touch per-CPU data with preemption enabled and trigger a BUG: using __this_cpu_add() in preemptible code. The root cause is a context-inappropriate c...

AZL-57596 CVE-2024-57939 affecting package kernel for versions less than 5.15.180.1-1

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix sleeping in invalid context in die die can be called in exception handler, and therefore cannot sleep. However, die takes spinlockt which can sleep with PREEMPTRT enabled. That causes the following warning: BUG: sleepi...

kernel: firmware: arm_sdei: Fix sleep from invalid context BUG

In the Linux kernel, the following vulnerability has been resolved: firmware: armsdei: Fix sleep from invalid context BUG Running a preempt-rt v6.2-rc3-rt1 based kernel on an Ampere Altra triggers: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:46 inatomic: 0,...

kernel: tcp: tcp_make_synack() can be called from process context

In the Linux kernel, the following vulnerability has been resolved: tcp: tcpmakesynack can be called from process context tcprtxsynack now could be called in process context as explained in 0a375c822497 "tcp: tcprtxsynack can be called from process context". tcprtxsynack might call tcpmakesynack,...