Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: x86/xen: Drop USERGSSYSRET64 paravirt call CVE-2021-4440 In the Linux kernel, the following vulnerability has been resolved: net: sched: flower: protect flwalk with rcu CVE-2021-47402 A flaw was found in the...

CVE-2024-38628

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uaudio: Fix race condition use of controls after free during gadget unbind. Hang on to the control IDs instead of pointers since those are correctly handled with locks...

UBUNTU-CVE-2024-38780

In the Linux kernel, the following vulnerability has been resolved: dma-buf/sw-sync: don't enable IRQ from syncprintobj Since commit a6aa8fca4d79 "dma-buf/sw-sync: Reduce irqsave/irqrestore from known context" by error replaced spinunlockirqrestore with spinunlockirq for both syncdebugfsshow and...

CVE-2024-38545

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix UAF for cq async event The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xalock to protect the CQ...

CVE-2024-38545 RDMA/hns: Fix UAF for cq async event

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix UAF for cq async event The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xalock to protect the CQ...

SUSE CVE-2024-36028

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix DEBUGLOCKSWARNON1 when dissolvefreehugetlbfolio When I did memory failure tests recently, below warning occurs: DEBUGLOCKSWARNON1 WARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 lockacquire+0xccb/0x1ca0...

DEBIAN-CVE-2024-36028

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix DEBUGLOCKSWARNON1 when dissolvefreehugetlbfolio When I did memory failure tests recently, below warning occurs: DEBUGLOCKSWARNON1 WARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 lockacquire+0xccb/0x1ca0...

UBUNTU-CVE-2024-36028

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix DEBUGLOCKSWARNON1 when dissolvefreehugetlbfolio When I did memory failure tests recently, below warning occurs: DEBUGLOCKSWARNON1 WARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 lockacquire+0xccb/0x1ca0...

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 originates from DEBUGLOCKSWARNON1 when the mm/hugetlb module dissolvefreehugetlbfolio...

CVE-2021-47242

CVE-2021-47242 affects the Linux kernel and is tied to a fix for an issue in MPTCP subflow error reporting. The root cause was a soft lookup caused when subflow_error_report() attempted to acquire mptcp_data_lock across call paths that could already hold other locks, triggering a soft lockup unde...

CVE-2021-47242 mptcp: fix soft lookup in subflow_error_report()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lookup in subflowerrorreport Maxim reported a soft lookup in subflowerrorreport: watchdog: BUG: soft lockup - CPU0 stuck for 22s! swapper/0:0 RIP: 0010:nativequeuedspinlockslowpath RSP: 0018:ffffa859c0003bc0 EFLAG...

CVE-2024-35934

In the Linux kernel, the following vulnerability has been resolved: net/smc: reduce rtnl pressure in smcpnetcreatepnetidslist Many syzbot reports show extreme rtnl pressure, and many of them hint that smc acquires rtnl in netns creation for no good reason 1 This patch returns early from...

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 an inability to safely use iouring locks...

DEBIAN-CVE-2024-27402

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: fix racy skbqueueempty use The receive queues are protected by their respective spin-lock, not the socket lock. This could lead to skbpeek unexpectedly returning NULL or a pointer to an already dequeued socket buffer...

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 lack of mutex locks around the acquisition instrumentation level...

The vulnerability of the check_for_locks() function in the fs/nfsd/nfs4state.c module of the Linux kernel-based NFS file system allows a attacker to trigger a service failure.

The vulnerability of the checkforlocks function in the fs/nfsd/nfs4state.c module of the Linux kernel-based Network File System server is related to improper checking of serialization. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

PT-2024-28075

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.9.0-rc6 Description The issue arises from the reinitialization of the whole EST structure, which resets the mutex lock embedded in the EST structure and triggers a warning. To address this, the lock is moved to...

SUSE CVE-2024-27005

In the Linux kernel, the following vulnerability has been resolved: interconnect: Don't access reqlist while it's being manipulated The icclock mutex was split into separate icclock and iccbwlock mutexes in 1 to avoid lockdep splats. However, this didn't adequately protect access to...

CVE-2024-27072 media: usbtv: Remove useless locks in usbtv_video_free()

In the Linux kernel, the following vulnerability has been resolved: media: usbtv: Remove useless locks in usbtvvideofree Remove locks calls in usbtvvideofree because are useless and may led to a deadlock as reported here: https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000 Also remove...

CVE-2024-27072

In the Linux kernel, the following vulnerability has been resolved: media: usbtv: Remove useless locks in usbtvvideofree Remove locks calls in usbtvvideofree because are useless and may led to a deadlock as reported here: https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000 Also remove...