UBUNTU-CVE-2021-46921

In the Linux kernel, the following vulnerability has been resolved: locking/qrwlock: Fix ordering in queuedwritelockslowpath While this code is executed with the waitlock held, a reader can acquire the lock without holding waitlock. The writer side loops checking the value with the...

CVE-2021-46921

CVE-2021-46921: Linux kernel vulnerability in locking/qrwlock where queued_write_lock_slowpath()’s acquire/cmpxchg ordering allows reads to observe values before the writer lock is truly acquired (A-B-A window). Exploitation would be local (epoll-related) and requires the read/write path to run w...

CVE-2021-46921 locking/qrwlock: Fix ordering in queued_write_lock_slowpath()

In the Linux kernel, the following vulnerability has been resolved: locking/qrwlock: Fix ordering in queuedwritelockslowpath While this code is executed with the waitlock held, a reader can acquire the lock without holding waitlock. The writer side loops checking the value with the...

CVE-2021-46921 locking/qrwlock: Fix ordering in queued_write_lock_slowpath()

In the Linux kernel, the following vulnerability has been resolved: locking/qrwlock: Fix ordering in queuedwritelockslowpath While this code is executed with the waitlock held, a reader can acquire the lock without holding waitlock. The writer side loops checking the value with the...

CVE-2021-46921

In the Linux kernel, the following vulnerability has been resolved: locking/qrwlock: Fix ordering in queuedwritelockslowpath While this code is executed with the waitlock held, a reader can acquire the lock without holding waitlock. The writer side loops checking the value with the...

CVE-2021-46921: Exposure of Resource to Wrong Sphere

In the Linux kernel, the following vulnerability has been resolved: locking/qrwlock: Fix ordering in queuedwritelockslowpath While this code is executed with the waitlock held, a reader can acquire the lock without holding waitlock. The writer side loops checking the value with the...

UVI-2021-1000044 locking/qrwlock: Fix ordering in queued_write_lock_slowpath()

locking/qrwlock: Fix ordering in queuedwritelockslowpath This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.33 by commit...