CVE-2026-52957

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. When decoding this CRUSH map in crushdecode, an array of maxbuckets CRUSH buckets is...

CVE-2026-53096 bpf: Use RCU-safe iteration in dev_map_redirect_multi() SKB path

In the Linux kernel, the following vulnerability has been resolved: bpf: Use RCU-safe iteration in devmapredirectmulti SKB path The DEVMAPHASH branch in devmapredirectmulti uses hlistforeachentrysafe to iterate hash buckets, but this function runs under RCU protection called from...

CVE-2026-53096

CVE-2026-53096 affects Linux kernel code path in BPF dev_map_redirect_multi() where DEVMAP_HASH uses hlist_for_each_entry_safe() under RCU protection. The function iterates hash buckets without rcu_dereference(), exposing risk of partially constructed nodes on weakly-ordered architectures (ARM64,...

EUVD-2026-38964

In the Linux kernel, the following vulnerability has been resolved: bpf: Use RCU-safe iteration in devmapredirectmulti SKB path The DEVMAPHASH branch in devmapredirectmulti uses hlistforeachentrysafe to iterate hash buckets, but this function runs under RCU protection called from...

EUVD-2026-38951

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix RCU stall in bpffdarraymapclear Add a missing condresched in bpffdarraymapclear loop. For PROGARRAY maps with many entries this loop calls progarraymappokerun per entry which can be expensive, and without yielding this c...

CVE-2026-53076 bpf: Fix OOB in pcpu_init_value

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpuinitvalue An out-of-bounds read occurs when copying element from a BPFMAPTYPECGROUPSTORAGE map to another pcpu map with the same valuesize that is not rounded up to 8 bytes. The issue happens when: 1. A...

EUVD-2026-38933

In the Linux kernel, the following vulnerability has been resolved: ASoC: sti: use managed regmapfield allocations The regmapfield objects allocated at player init are never freed and may leak resources if the driver is removed. Switch to devmregmapfieldalloc to automatically limit the lifetime o...

CVE-2026-53005 af_unix: Drop all SCM attributes for SOCKMAP.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AFUNIX GC. When a socket in SOCKMAP receives skb with inflight fd, skpsockverdictdataready looks up the mapped socket and enqueue skb to its...

CVE-2026-53005

CVE-2026-53005 affects the Linux kernel af_unix SOCKMAP feature. The issue arises from improper handling of SCM attributes when data is passed to SOCKMAP, enabling a use-after-free and inflight-file-descriptor leaks due to inability of GC paths to inspect psock queues after skb redirection. Multi...

CVE-2026-52957

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. When decoding this CRUSH map in crushdecode, an array of maxbuckets CRUSH buckets is...

CVE-2026-52957

Consolidated details from CVE-2026-52957 show a Linux kernel libceph flaw in processing CEPH_MSG_OSD_MAP: during CRUSH map decoding, bucket indices may reference NULL buckets when decoding crush_choose_arg_map, risking a NULL pointer dereference. A patch extends the validation to only access non-...

CVE-2026-52957 libceph: Fix potential null-ptr-deref in decode_choose_args()

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. When decoding this CRUSH map in crushdecode, an array of maxbuckets CRUSH buckets is...

CVE-2026-52955 libceph: Fix potential out-of-bounds access in crush_decode()

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in crushdecode A message of type CEPHMSGOSDMAP containing a crush map with at least one bucket has two fields holding the bucket algorithm. If the values in these two fields differ, an...

CVE-2026-52955

The CVE-2026-52955 vulnerability affects the Linux kernel’s libceph crush_decode(). A CEPH_MSG_OSD_MAP containing a crush map with at least one bucket could have two bucket algorithm fields (alg and b->alg) that differ, leading to potential out-of-bounds access during allocation or destruction...

CVE-2026-52954

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain chooseargs that get decoded in...

CVE-2026-52954 libceph: handle rbtree insertion error in decode_choose_args()

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain chooseargs that get decoded in...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fixed a use-after-free race condition in the fault handler. When a page fault occurs in a secret memory file created with memfdsecret2, the kernel will allocate a new folio for it, mark the underlying page as not...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has a regression starting from 6.18-rc1. We have a issue with cephmdsauthmatch if fsname is NULL: c const char fsname =...

Astra Linux – Vulnerability in grub2

An integer overflow flaw was discovered in the BFS file system driver within grub2. When reading a file using an indirect extent map, grub2 fails to validate the number of extent entries to be read. A maliciously crafted or corrupted BFS file system may cause an integer overflow during file...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fixed the double dmabufunpin in the failure path. In ibumemdmabufgetpinnedwithdmadevice, the call to ibumemdmabufmappages may fail. If this occurs, the dmabuf is immediately unpinned, but the umemdmabuf-pinned flag...