CVE-2022-50712

In the Linux kernel, the following vulnerability has been resolved: devlink: hold region lock when flushing snapshots Netdevsim triggers a splat on reload, when it destroys regions with snapshots pending: WARNING: CPU: 1 PID: 787 at net/core/devlink.c:6291 devlinkregionsnapshotdel+0x12e/0x140 CPU...

CVE-2022-50720

In the Linux kernel, the following vulnerability has been resolved: x86/apic: Don't disable x2APIC if locked The APIC supports two modes, legacy APIC or xAPIC, and Extended APIC or x2APIC. X2APIC mode is mostly compatible with legacy APIC, but it disables the memory-mapped APIC interface in favor...

UBUNTU-CVE-2022-50712

In the Linux kernel, the following vulnerability has been resolved: devlink: hold region lock when flushing snapshots Netdevsim triggers a splat on reload, when it destroys regions with snapshots pending: WARNING: CPU: 1 PID: 787 at net/core/devlink.c:6291 devlinkregionsnapshotdel+0x12e/0x140 CPU...

CVE-2023-54156

CVE-2023-54156 affects the Linux kernel sfc/efx_net_stats path where ethtool self-tests can trigger a stats read during NIC reset. If Stats are read while NIC data (mc_stats) is NULL due to fini, there is a NULL dereference in efx_nic_update_stats, potentially crashing the kernel. The advisory's ...

CVE-2023-54156 sfc: fix crash when reading stats while NIC is resetting

In the Linux kernel, the following vulnerability has been resolved: sfc: fix crash when reading stats while NIC is resetting efxnetstats .ndogetstats64 can be called during an ethtool selftest, during which time nicdata-mcstats is NULL as the NIC has been fini'd. In this case do not attempt to...

CVE-2023-54157

The CVE-2023-54157 issue concerns the Linux kernel binder code: a use-after-free in alloc->vma during a race with munmap. The root cause is a downgrade of the mmap lock that allows binder_update_page_range() to access alloc->vma while vm_area_free() may tear down the VMA, enabling a UAF as ...

CVE-2023-54152 can: j1939: prevent deadlock by moving j1939_sk_errqueue()

In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevent deadlock by moving j1939skerrqueue This commit addresses a deadlock situation that can occur in certain scenarios, such as when running data TP/ETP transfer and subscribing to the error queue while receiving a...

CVE-2023-54152

Summary: CVE-2023-54152 affects the Linux kernel’s j1939 subsystem, where a deadlock could occur when performing data TP/ETP transfers and subscribing to the error queue during a net down event. Root cause: a call to j1939_sk_errqueue() was made inside the active_session_list_lock, which could in...

CVE-2023-54149

CVE-2023-54149 affects the Linux kernel where, when the felix driver is used as a DSA master for a VLAN-aware bridge, vlan_for_each() is invoked from a context that may not hold rtnl_lock, leading to a potentially unsafe RCU read-side usage. The advisory notes that vlan_for_each() expects rtnl_lo...

CVE-2023-54142

CVE-2023-54142: In the Linux kernel gtp_encap path, a use-after-free occurs in __gtp_encap_destroy() when sk cleanup races with sock data access. The advisory notes that a previous patch added lock_sock() and release_sock() around __gtp_encap_destroy() to protect sk->sk_user_data, but release_...

CVE-2023-54128 fs: drop peer group ids under namespace lock

In the Linux kernel, the following vulnerability has been resolved: fs: drop peer group ids under namespace lock When cleaning up peer group ids in the failure path we need to make sure to hold on to the namespace lock. Otherwise another thread might just turn the mount from a shared into a...

CVE-2023-54128

The CVE-2023-54128 entry refers to a Linux kernel issue in fs: drop peer group IDs under namespace lock. The root cause is failing to hold the namespace lock while cleaning up peer group IDs in the failure path, which could allow another thread to change a mount from shared to non-shared concurre...

CVE-2023-54128 fs: drop peer group ids under namespace lock

In the Linux kernel, the following vulnerability has been resolved: fs: drop peer group ids under namespace lock When cleaning up peer group ids in the failure path we need to make sure to hold on to the namespace lock. Otherwise another thread might just turn the mount from a shared into a...

CVE-2023-54088

Technical details about CVE-2023-54088 (Linux blk-cgroup queue_lock handling) are not publicly provided in the supplied documents. Monitor OSV and distro advisories for patched versions and fixes.

CVE-2023-54088 blk-cgroup: hold queue_lock when removing blkg->q_node

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

CVE-2023-54088 blk-cgroup: hold queue_lock when removing blkg->q_node

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

CVE-2023-54082 af_unix: Fix null-ptr-deref in unix_stream_sendpage().

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix null-ptr-deref in unixstreamsendpage. Bing-Jhong Billy Jheng reported null-ptr-deref in unixstreamsendpage with detailed analysis and a nice repro. unixstreamsendpage tries to add data to the last skb in the peer's re...

CVE-2023-54082

CVE-2023-54082 has been rejected in the official CVE list, but related connected records describe a Linux kernel vulnerability: af_unix, where unix_stream_sendpage() could race with garbage collection, potentially dereferencing an unlocked skb and causing a use-after-free. The root cause is failu...

CVE-2022-50776 clk: st: Fix memory leak in st_of_quadfs_setup()

In the Linux kernel, the following vulnerability has been resolved: clk: st: Fix memory leak in stofquadfssetup If stclkregisterquadfspll fails, @lock should be freed before goto @errexit, otherwise will cause meory leak issue, fix it...

CVE-2022-50761 x86/xen: Fix memory leak in xen_init_lock_cpu()

In the Linux kernel, the following vulnerability has been resolved: x86/xen: Fix memory leak in xeninitlockcpu In xeninitlockcpu, the @name has allocated new string by kasprintf, if bindipitoirqhandler fails, it should be freed, otherwise may lead to a memory leak issue, fix it...