CVE-2023-52791

In the Linux kernel, the following vulnerability has been resolved: i2c: core: Run atomic i2c xfer when !preemptible Since bae1d3a05a8b, i2c transfers are non-atomic if preemption is disabled. However, non-atomic i2c transfers require preemption e.g. in waitforcompletion while waiting for the DMA...

CVE-2023-52791

CVE-2023-52791 affects the Linux kernel i2c core: Run atomic i2c xfer when !preemptible to ensure atomicity during restart sequences, preventing voluntary context switches within RCU read-side critical sections. The fix, tied to preemption handling (switching to !preemptible()), aligns with pre-v...

UBUNTU-CVE-2024-35819

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: Use raw spinlock for cgrlock smpcallfunction always runs its callback in hard IRQ context, even on PREEMPTRT, where spinlocks can sleep. So we need to use a raw spinlock for cgrlock to ensure we aren't waiting on...

CVE-2024-26937

CVE-2024-26937 is a Linux kernel bug in the Intel i915 GPU driver where a preempt-to-busy race during engine parking could leave queue_priority_hint set. The heartbeat can trigger completion during parking, causing an assertion failure and a crash. The issue was resolved by resetting queue_priori...

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: bpf: Disable preemption in bpf_perf_event_output

A flaw was found in the Linux kernel's BPF subsystem. The bpfperfeventoutput function relies on disabled preemption for nesting protection, but when called from uprobes context via bpfprogrunarraysleepable, preemption remains enabled. This allows task preemption during protected sections, leading...

kernel: bpf: Disable preemption in bpf_event_output

A race condition was found in the BPF event output mechanism. When preemption is enabled during bpfeventoutput, two tasks can access the same perfsampledata buffer concurrently, leading to data corruption and kernel crashes...

CVE-2022-48634 drm/gma500: Fix BUG: sleeping function called from invalid context errors

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: Fix BUG: sleeping function called from invalid context errors gmacrtcpageflip was holding the eventlock spinlock while calling crtcfuncs-modesetbase which takes wwmutex. The only reason to hold eventlock is to clear...

OESA-2024-1484 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: i2c: img-scb: fix reference leak when pmruntimegetsync fails The PM reference count is not expected to be incremented on return in functions imgi2cxfer and...

CVE-2021-47185 tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc

In the Linux kernel, the following vulnerability has been resolved: tty: ttybuffer: Fix the softlockup issue in flushtoldisc When running ltp testcaseltp/testcases/kernel/pty/pty04.c with arm64, there is a soft lockup, which look like this one: Workqueue: eventsunbound flushtoldisc Call trace:...

SUSE CVE-2023-52483

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...

SUSE CVE-2021-46977

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. If the MSR holds a different value per logical CPU, the WRMSR could corrupt the host's value if KVM is...

SUSE CVE-2021-46984

In the Linux kernel, the following vulnerability has been resolved: kyber: fix out of bounds access when preempted blkmqschedbiomerge gets the ctx and hctx for the current CPU and passes the hctx to -biomerge. kyberbiomerge then gets the ctx for the current CPU again and uses that to get the...

CVE-2023-52483

A use-after-free vulnerability was found in the Linux kernel, which affects the mctp component and is caused by route lookups that traverse the net's route list without the RCU read lock held. This issue can result in a use-after-free situation where the kfree function is called on a route pointe...

CVE-2021-46977

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. If the MSR holds a different value per logical CPU, the WRMSR could corrupt the host's value if KVM is...

DEBIAN-CVE-2023-52483

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...

CVE-2023-52483

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...

Design/Logic Flaw

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...

UBUNTU-CVE-2023-52483

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...

CVE-2023-52483 mctp: perform route lookups under a RCU read-side lock

In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups mctproutelookup and mctproutelookupnull traverse the net's route list without the RCU read lock held. This means the route lookup is subject to...