CVE-2026-53064 dm cache: fix null-deref with concurrent writes in passthrough mode

In the Linux kernel, the following vulnerability has been resolved: dm cache: fix null-deref with concurrent writes in passthrough mode In passthrough mode, when dm-cache starts to invalidate a cache entry and bio prison cell lock fails due to concurrent write to the same cached block, mg-cell...

CVE-2026-53061

CVE-2026-53061 is a Linux kernel issue where the dirty-mapping check for passthrough mode in dm-cache could load dirty mappings during table preload, risking data loss. The patch moves the relevant checks to the preresume phase during table preload and removes an unused function. Connected adviso...

CVE-2026-53060

CVE-2026-53060 is a Linux kernel memory-leak in dm_cache_metadata_abort when a root_lock can’t be acquired due to a read-only metadata state. The issue is fixed in updated kernels (e.g., Root’s rootio-linux patches for Ubuntu 22.04/24.04 and related distro advisories). Affected environments shoul...

CVE-2026-53059 dm log: fix out-of-bounds write due to region_count overflow

In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to regioncount overflow The local variable regioncount in createlogcontext is declared as unsigned int 32-bit, but dmsectordivup returns sectort 64-bit. When a device-mapper target has a...

CVE-2026-53053 iommu/amd: Fix clone_alias() to use the original device's devid

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix clonealias to use the original device's devid Currently clonealias assumes first argument pdev is always the original device pointer. This function is called by pciforeachdmaalias which based on topology decides to...

CVE-2026-53045 memory: tegra124-emc: Fix dll_change check

In the Linux kernel, the following vulnerability has been resolved: memory: tegra124-emc: Fix dllchange check The code checking whether the specified memory timing enables DLL in the EMRS register was reversed. DLL is enabled if bit A0 is low. Fix the check...

CVE-2026-53042 fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal

In the Linux kernel, the following vulnerability has been resolved: fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal CXL is linked before fwctl in drivers/Makefile. Both use moduleinit, so cxlpcidriverinit runs first. When cxlpciprobe calls fwctlregister and then...

CVE-2026-53038 ima_fs: Correctly create securityfs files for unsupported hash algos

In the Linux kernel, the following vulnerability has been resolved: imafs: Correctly create securityfs files for unsupported hash algos imatpmchip-allocatedbanksi.cryptoid is initialized to HASHALGOLAST if the TPM algorithm is not supported. However there are places relying on the algorithm to be...

CVE-2026-53034

CVE-2026-53034 is a Linux kernel issue in af_unix sockmap handling where a race between unix_stream_connect() state update and unix_peer assignment can lead to a NULL pointer dereference in unix_stream_bpf_update_proto(). The root cause is a timing window when sk_state is set to TCP_ESTABLISHED b...

CVE-2026-53031

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53029

CVE-2026-53029 affects the Linux kernel ntfs3 filesystem. A vulnerability arises from an uninitialized local variable lcn when handling zero-length data during I/O, which could lead to unpredictable behavior and potential information disclosure or DoS. The fix moves the check for a zero value in ...

CVE-2026-53020

The CVE-2026-53020 entry documents a Linux kernel issue: a race condition during Translation Lookaside Buffer (TLB) synchronization when the page table is traversed and modified without holding the proper page table lock. The root cause is the lack of adequate locking during TLB sync, which can l...

CVE-2026-53013 macvlan: fix macvlan_get_size() not reserving space for IFLA_MACVLAN_BC_CUTOFF

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix macvlangetsize not reserving space for IFLAMACVLANBCCUTOFF macvlangetsize does not account for IFLAMACVLANBCCUTOFF, but macvlanfillinfo conditionally includes it when port-bccutoff != 1. This causes nlaputs32 to fail...

CVE-2026-53013 macvlan: fix macvlan_get_size() not reserving space for IFLA_MACVLAN_BC_CUTOFF

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix macvlangetsize not reserving space for IFLAMACVLANBCCUTOFF macvlangetsize does not account for IFLAMACVLANBCCUTOFF, but macvlanfillinfo conditionally includes it when port-bccutoff != 1. This causes nlaputs32 to fail...

CVE-2026-53004 sctp: fix OOB write to userspace in sctp_getsockopt_peer_auth_chunks

In the Linux kernel, the following vulnerability has been resolved: sctp: fix OOB write to userspace in sctpgetsockoptpeerauthchunks sctpgetsockoptpeerauthchunks checks that the caller's optval buffer is large enough for the peer AUTH chunk list with if len gauthchunks, which lives at offset...

CVE-2026-53003

In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression PFC is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an...

CVE-2026-52999

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx structure is initialized once and passed by reference to nfosfmatchone for each fingerprint checked. During TCP option parsing,...

CVE-2026-52997

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: drain both C-queue and L-queue in dualpi2change Fix dualpi2change to correctly enforce updated limit and memlimit values after a configuration change of the dualpi2 qdisc. Before this patch, dualpi2change...

CVE-2026-52993 tipc: fix double-free in tipc_buf_append()

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipcbufappend tipcmsgvalidate can potentially reallocate the skb it is validating, freeing the old one. In tipcbufappend, it was being called with a pointer to a local variable which was a copy of the...

CVE-2026-52990 fsnotify: fix inode reference leak in fsnotify_recalc_mask()

In the Linux kernel, the following vulnerability has been resolved: fsnotify: fix inode reference leak in fsnotifyrecalcmask fsnotifyrecalcmask fails to handle the return value of fsnotifyrecalcmask, which may return an inode pointer that needs to be released via fsnotifydropobject when the...