UBUNTU-CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

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...

SUSE CVE-2021-46929

In the Linux kernel, the following vulnerability has been resolved: sctp: use callrcu to free endpoint This patch is to delay the endpoint free by calling callrcu to fix another use-after-free issue in sctpsockdump: BUG: KASAN: use-after-free in lockacquire+0x36d9/0x4c20 Call Trace:...

CVE-2021-46929

In the Linux kernel, the following vulnerability has been resolved: sctp: use callrcu to free endpoint This patch is to delay the endpoint free by calling callrcu to fix another use-after-free issue in sctpsockdump: BUG: KASAN: use-after-free in lockacquire+0x36d9/0x4c20 Call Trace:...

SUSE CVE-2023-52447

In the Linux kernel, the following vulnerability has been resolved: bpf: Defer the free of inner map when necessary When updating or deleting an inner map in map array or map htab, the map may still be accessed by non-sleepable program or sleepable program. However bpfmapfdputptr decreases the...

Kernel: race condition leads to use after free during vma lock in lock_vma_under_rcu

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SUSE CVE-2023-35958

Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerabili...

CVE-2023-6932

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread. We recommend upgrading past...

CVE-2023-6932 Use-after-free in Linux kernel's ipv4: igmp component

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread. We recommend upgrading past...

kernel: wifi: rtw88: use work to update rate to avoid RCU warning

A flaw was identified in the Linux kernel’s rtw88 Wi-Fi driver drivers/net/wireless/realtek/rtw88 where the ieee80211ops::starcupdate callback was invoked within a Read-Copy-Update RCU read-side critical section without proper atomicity or deferral. The ieee80211chanbwchange function holds an RCU...

kernel: net/mlx5e: Fix deadlock in tc route query code

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix deadlock in tc route query code Cited commit causes ABBA deadlock0 when peer flows are created while holding the devcom rw semaphore. Due to peer flows offload implementation the lock is taken much higher up the ca...

kernel: srcu: Delegate work to the boot cpu if using SRCU_SIZE_SMALL

A synchronization flaw was found in the Linux kernel Sleepable Read-Copy-Update SRCU implementation. The subsystem assumed that central processing unit CPU 0 was always online. On systems where CPU 0 is offline, such as crash-kernel configurations using a different boot CPU, SRCU work could be...

kernel: net/mlx5e: Fix deadlock in tc route query code

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix deadlock in tc route query code Cited commit causes ABBA deadlock0 when peer flows are created while holding the devcom rw semaphore. Due to peer flows offload implementation the lock is taken much higher up the ca...

kernel: rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state()

A lockdep warning was found in the Linux kernel's RCU subsystem. The rcuforcequiescentstate function incorrectly uses thiscpuread in preemptible code context. This macro requires preemption to be disabled, but the code can be called from preemptible context during rcutorture testing, triggering a...

PT-2025-37562

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL dereference issue was identified and resolved in the Linux kernel's raw get next function. This issue stemmed from parallel execution sequences potentially freeing a socket while...

PT-2025-41115

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc1 Description The Linux kernel contains a flaw related to SRCU Sub Read Copy Update. A commit assumed that CPU 0 is always online, but this is not always the case, particularly when booting a kdump kernel...

UBUNTU-CVE-2023-4610

Rejected reason: The SRCU code was added in upstream kernel v6.4-rc1 and removed before v6.4. This bug only existed in development kernels. Please see https://lore.kernel.org/all/[email protected] and https://bugzilla.suse.com/showbug.cgi?id=1215932 for more information...

PT-2025-53190

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5.0-rc4-rt2-yocto-preempt-rt+ 15 Description The Linux kernel contained a flaw related to memory information dumping within the RCU Read-Copy-Update subsystem. Specifically, when call rcu was invoked multiple...

SUSE CVE-2023-32246

In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcubarrier in ksmbdserverexit racy issue is triggered the bug by racing between closing a connection and rmmod. In ksmbd, rcubarrier is not called at module unload time, so nothing prevents ksmbd from getting unloaded...

kernel: mt76: fix use-after-free by removing a non-RCU wcid pointer

A vulnerability was found in the Linux kernel's mt76 wi-fi driver. A concurrency bug causes the mtxq TX queue to maintain a raw pointer to a wcid structure mtxq-wcid that might be freed by the time it is accessed. This issue can lead to a use-after-free scenario, leading to system instability,...