The vulnerabilities of the functions btrfs_maybe_wake_unfinished Drop() and btrfs_add_dead_root() of the Linux kernel’s Btrfs component allow a malicious actor to trigger a service failure due to improper locking mechanisms.

The vulnerabilities of the functions btrfsmaybewakeunfinished Drop and btrfsadddeadroot in the Linux kernel’s Btrfs component are related to improper locking mechanisms. Exploiting these vulnerabilities could allow an attacker to trigger a service failure...

CVE-2022-48901 btrfs: do not start relocation until in progress drops are done

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not start relocation until in progress drops are done We hit a bug with a recovering relocation on mount for one of our file systems in production. I reproduced this locally by injecting errors into snapshot delete with...

Obfuscation: There Are Two Sides To Everything

How to detect and prevent attackers from using these various techniques Obfuscation is an important technique for protecting software that also carries risks, especially when used by malware authors. In this article, we examine obfuscation, its effects, and responses to it. What Is Obfuscation?...

SUSE CVE-2022-48784

In the Linux kernel, the following vulnerability has been resolved: cfg80211: fix race in netlink owner interface destruction My previous fix here to fix the deadlock left a race where the exact same deadlock see the original commit referenced below can still happen if cfg80211destroyifaces alrea...

CVE-2022-48842

In the Linux kernel, the following vulnerability has been resolved: ice: Fix race condition during interface enslave Commit 5dbbbd01cbba83 "ice: Avoid RTNL lock when re-creating auxiliary device" changes a process of re-creation of aux device so iceplugauxdev is called from iceservicetask context...

CVE-2022-48842 ice: Fix race condition during interface enslave

In the Linux kernel, the following vulnerability has been resolved: ice: Fix race condition during interface enslave Commit 5dbbbd01cbba83 "ice: Avoid RTNL lock when re-creating auxiliary device" changes a process of re-creation of aux device so iceplugauxdev is called from iceservicetask context...

CVE-2022-48842 ice: Fix race condition during interface enslave

In the Linux kernel, the following vulnerability has been resolved: ice: Fix race condition during interface enslave Commit 5dbbbd01cbba83 "ice: Avoid RTNL lock when re-creating auxiliary device" changes a process of re-creation of aux device so iceplugauxdev is called from iceservicetask context...

CVE-2022-48842 ice: Fix race condition during interface enslave

In the Linux kernel, the following vulnerability has been resolved: ice: Fix race condition during interface enslave Commit 5dbbbd01cbba83 "ice: Avoid RTNL lock when re-creating auxiliary device" changes a process of re-creation of aux device so iceplugauxdev is called from iceservicetask context...

SUSE CVE-2024-40935

In the Linux kernel, the following vulnerability has been resolved: cachefiles: flush all requests after setting CACHEFILESDEAD In ondemand mode, when the daemon is processing an open request, if the kernel flags the cache as CACHEFILESDEAD, the cachefilesdaemonwrite will always return -EIO, so t...

CVE-2022-48842: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: ice: Fix race condition during interface enslave Commit 5dbbbd01cbba83 "ice: Avoid RTNL lock when re-creating auxiliary device" changes a process of re-creation of aux device so iceplugauxdev is called from iceservicetask context...

DEBIAN-CVE-2024-40935

In the Linux kernel, the following vulnerability has been resolved: cachefiles: flush all requests after setting CACHEFILESDEAD In ondemand mode, when the daemon is processing an open request, if the kernel flags the cache as CACHEFILESDEAD, the cachefilesdaemonwrite will always return -EIO, so t...

UBUNTU-CVE-2024-40935

In the Linux kernel, the following vulnerability has been resolved: cachefiles: flush all requests after setting CACHEFILESDEAD In ondemand mode, when the daemon is processing an open request, if the kernel flags the cache as CACHEFILESDEAD, the cachefilesdaemonwrite will always return -EIO, so t...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a failure of the cachefiles component to properly refresh all requests after setting CACHEFILESDEAD...

Malicious code in living-dead (RubyGems)

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SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2024:2184-1)

The remote SUSE Linux SLED12 / SLEDSAP12 / SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2184-1 advisory. The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes. The following securi...

SUSE CVE-2024-38570

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix potential glock use-after-free on unmount When a DLM lockspace is released and there ares still locks in that lockspace, DLM will unlock those locks automatically. Commit fb6791d100d1b started exploiting this behavior t...

DEBIAN-CVE-2024-38570

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix potential glock use-after-free on unmount When a DLM lockspace is released and there ares still locks in that lockspace, DLM will unlock those locks automatically. Commit fb6791d100d1b started exploiting this behavior t...

CVE-2024-38589

In the Linux kernel, the following vulnerability has been resolved: netrom: fix possible dead-lock in nrrtioctl syzbot loves netrom, and found a possible deadlock in nrrtioctl 1 Make sure we always acquire nrnodelistlock before nrnodelocknrnode 1 WARNING: possible circular locking dependency...

SUSE-SU-2024:1983-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2024-26921: Preserve kabi for skbuff bsc1223138. - CVE-2022-48686: Fix UAF when detecting digest errors bsc1223948. - CVE-2021-47074: Fixed memory leak in...

SUSE CVE-2023-52872

In the Linux kernel, the following vulnerability has been resolved: tty: ngsm: fix race condition in status line change on dead connections gsmcleanupmux cleans up the gsm by closing all DLCIs, stopping all timers, removing the virtual tty devices and clearing the data queues. This procedure,...