CVE-2022-50021 ext4: block range must be validated before use in ext4_mb_clear_bb()

In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb Block range to free is validated in ext4freeblocks using ext4inodeblockvalid and then it's passed to ext4mbclearbb. However in some situations on bigalloc file syste...

CVE-2022-49970 bpf, cgroup: Fix kernel BUG in purge_effective_progs

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix kernel BUG in purgeeffectiveprogs Syzkaller reported a triggered kernel BUG as follows: ------------ cut here ------------ kernel BUG at kernel/bpf/cgroup.c:925! invalid opcode: 0000 1 PREEMPT SMP NOPTI CPU: 1 PI...

CVE-2022-49970

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix kernel BUG in purgeeffectiveprogs Syzkaller reported a triggered kernel BUG as follows: ------------ cut here ------------ kernel BUG at kernel/bpf/cgroup.c:925! invalid opcode: 0000 1 PREEMPT SMP NOPTI CPU: 1 PI...

DEBIAN-CVE-2025-38066

In the Linux kernel, the following vulnerability has been resolved: dm cache: prevent BUGON by blocking retries on failed device resumes A cache device failing to resume due to mapping errors should not be retried, as the failure leaves a partially initialized policy object. Repeating the resume...

CVE-2025-38040

In the Linux kernel, the following vulnerability has been resolved: serial: mctrlgpio: split disablems into sync and nosync APIs The following splat has been observed on a SAMA5D27 platform using atmelserial: BUG: sleeping function called from invalid context at kernel/irq/manage.c:738 inatomic: ...

UBUNTU-CVE-2025-38013

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Set nchannels after allocating struct cfg80211scanrequest Make sure that nchannels is set after allocating the struct cfg80211registereddevice::intscanreq member. Seen with syzkaller: UBSAN:...

CVE-2022-49970: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix kernel BUG in purgeeffectiveprogs Syzkaller reported a triggered kernel BUG as follows: ------------ cut here ------------ kernel BUG at kernel/bpf/cgroup.c:925! invalid opcode: 0000 1 PREEMPT SMP NOPTI CPU: 1 PI...

Linux kernel 安全漏洞

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 mismatch in the exchange of PFN page types in mprotect, which could lead to a kernel bug...

PT-2025-25896 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the fixed version Description: A kernel BUG has been resolved in the Linux kernel, specifically in the bpf and cgroup components. The issue was reported by Syzkaller and occurs when a kernel BUG is triggered due...

CVE-2022-49992: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/mprotect: only reference swap pfn page if type match Yu Zhao reported a bug after the commit "mm/swap: Add swpoffsetpfn to fetch PFN from swap entry" added a check in swpoffsetpfn for swap type 1: kernel BUG at...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: In btusb, there is a risk of NULL pointer dereferencing in skbdequeue. A NULL pointer dereferencing can occur when processing a QCA firmware crash dump on WCN7851 0489:e0f3. 93.672166 Bluetooth: hci0: ACL memdump...

Astra Linux - Vulnerability in linux-6.12

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: take paired job reference For paired jobs, have the fragment job take a reference to the geometry job, so that the geometry job cannot be freed until the fragment job has finished using it. The geometry job...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: mm: Fixed a kernel bug where userfaultfdmove encountered swapcache. userfaultfdmove checks whether the PTE entry is present or a swap entry. - If the PTE entry is present, movepresentpte handles folio migration by setting:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a slab-use-after-free error in l2capsendcmd. After the hci sync command releases the l2capconn, the hci receive data work queue references the released l2capconn when sending data to the upper layer...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: The program exits after a state insertion failure at btrfsconvertextentbit. If the insertstate function fails, it returns an error pointer. We then call extentiotreepanic, which will trigger a BUG. However, if CONFIGBUG is...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed to avoid accessing uninitialized curseg. The syzbot reports the following f2fs bug: F2FS-fs loop3: The filesystem stopped due to the reason: 7. kworker/u8:7: Attempt to access beyond the end of the device. Bug: Unable...

TencentOS Server 3: kernel (TSSA-2024:1024)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:1024 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

PT-2025-30774

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The OP-TEE driver registers the notif callback function for FF-A notifications. This function is called in an atomic context, which can lead to errors when processing asynchronous...

SUSE SLES15: cluster-md-kmp-azure / dlm-kmp-azure / gfs2-kmp-azure / etc (SUSE-SU-2025:01707-1)

The remote SUSE Linux SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01707-1 advisory. The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes. The following securi...

CVE-2020-7462

In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic...