CVE-2025-21809

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix peer hash locking vs RCU callback In its address list, afs now retains pointers to and refs on one or more rxrpcpeer objects. The address list is freed under RCU and at this time, it puts the refs on those peers...

CVE-2022-49270

In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses queue, so it must be called before blkcleanupdisk starts its killing: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

CVE-2022-49270: Use After Free

In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses queue, so it must be called before blkcleanupdisk starts its killing: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

CVE-2025-21655 io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period

In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...

CVE-2025-21655 io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period

In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...

CVE-2025-21655: Use After Free

In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...

CVE-2024-57903

In the Linux kernel, the following vulnerability has been resolved: net: restrict SOREUSEPORT to inet sockets After blamed commit, crypto sockets could accidentally be destroyed from RCU call back, as spotted by zyzbot 1. Trying to acquire a mutex in RCU callback is not allowed. Restrict...

UBUNTU-CVE-2024-57903

In the Linux kernel, the following vulnerability has been resolved: net: restrict SOREUSEPORT to inet sockets After blamed commit, crypto sockets could accidentally be destroyed from RCU call back, as spotted by zyzbot 1. Trying to acquire a mutex in RCU callback is not allowed. Restrict...

CVE-2024-57903: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: net: restrict SOREUSEPORT to inet sockets After blamed commit, crypto sockets could accidentally be destroyed from RCU call back, as spotted by zyzbot 1. Trying to acquire a mutex in RCU callback is not allowed. Restrict...

kernel: dm: fix use-after-free in dm_cleanup_zoned_dev()

In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses queue, so it must be called before blkcleanupdisk starts its killing: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

CVE-2024-26961 mac802154: fix llsec key resources release in mac802154_llsec_key_del

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix llsec key resources release in mac802154llseckeydel mac802154llseckeydel can free resources of a key directly without following the RCU rules for waiting before the end of a grace period. This may lead to...

UBUNTU-CVE-2024-26910

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronizercu add...

CVE-2024-26910

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronizercu add...

CVE-2024-26910 netfilter: ipset: fix performance regression in swap operation

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronizercu add...

OESA-2023-1782 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.6. drivers/char/pcmcia/cm4040cs.c has a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling open, aka a race...

kernel: dm: fix use-after-free in dm_cleanup_zoned_dev()

In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses queue, so it must be called before blkcleanupdisk starts its killing: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...