CVE-2023-53809 l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809 l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809

The CVE-2023-53809 issue affects the Linux kernel where passing a pppol2tp socket as a UDP socket to l2tp_tunnel_register() could trigger a recursive locking deadlock. Root cause: a lock order condition allowed deadlock when a socket path led to nested locking of sk_lock-AF_PPPOX. The advisory no...

CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53777

CVE-2023-53777 affects the Linux kernel’s EROFS subsystem, specifically when using data-deduplicated compressed images. A race can form looping chains (hooked chains) between pclusters, potentially causing file pages to remain locked forever. The vulnerability description confirms it is observed ...

CVE-2022-50648 ftrace: Fix recursive locking direct_mutex in ftrace_modify_direct_caller

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix recursive locking directmutex in ftracemodifydirectcaller Naveen reported recursive locking of directmutex with sample ftrace-direct-modify.ko: 74.762406 WARNING: possible recursive locking detected 74.762887 6.0.0-rc...

CVE-2022-50648: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix recursive locking directmutex in ftracemodifydirectcaller Naveen reported recursive locking of directmutex with sample ftrace-direct-modify.ko: 74.762406 WARNING: possible recursive locking detected 74.762887 6.0.0-rc...

CVE-2023-53809: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53848: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fix a deadlock in r5lexitlog Commit b13015af94cf "md/raid5-cache: Clear conf-log after finishing work" introduce a new problem: // caller hold reconfigmutex r5lexitlog flushwork&log-disablewritebackwork...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from the fact that l2tptunnelregister can cause a recursive deadlock when passing pppol2tp file descriptors...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from recursive locking of directmutex, which could lead to a deadlock...

PT-2025-49669

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc5-00205-gc96618275234 56 Description The Linux kernel contains a flaw in the l2tp implementation that can lead to a recursive deadlock within the l2tp tunnel register function. This occurs when a file...

PT-2025-49739

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock situation exists within the r5l exit log function in the md/raid5-cache component of the Linux kernel. This issue stems from a commit b13015af94cf intended to clear the conf-l...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from md/raid5-cache deadlocking in r5lexitlog, which may result in resources not being released...

CVE-2022-50668: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock infinitely looping inside ext4xattrblockset where we constantly keep finding xattr block for reuse in mbcache but we are unable to...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from improper use of locks in rdstcpresetcallbacks, which could lead to a deadlock...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a corrupted ext4 filesystem mbcache entry, which could lead to a deadlock...

CVE-2025-40329: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix deadlock in drmschedentitykilljobscb The Mesa issue referenced below pointed out a possible deadlock: 1231.611031 Possible interrupt unsafe locking scenario: 1231.611033 CPU0 CPU1 1231.611034 ---- ---- 1231.611035...

CVE-2025-40327: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix system hang caused by cpu-clock usage cpu-clock usage by the async-profiler tool can trigger a system hang, which got bisected back to the following commit by Octavia Togami: 18dbcbfabfff "perf: Fix the POLLHUP...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from not properly releasing an mmap write lock, which could lead to a deadlock...