UBUNTU-CVE-2026-52956

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in cephxdecrypt In cephxdecrypt, a part of the buffer p is interpreted as a cephxencryptheader, and the magic field of this struct is accessed. This happens without any guarantee that t...

UBUNTU-CVE-2026-52950

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init d...

UBUNTU-CVE-2026-53060

In the Linux kernel, the following vulnerability has been resolved: dm cache metadata: fix memory leak on metadata abort retry When failing to acquire the rootlock in dmcachemetadataabort because the blockmanager is read-only, the temporary blockmanager created outside the rootlock is not properl...

UBUNTU-CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

UBUNTU-CVE-2026-53099

In the Linux kernel, the following vulnerability has been resolved: bpf: Switch CONFIGCFICLANG to CONFIGCFI This was renamed in commit 23ef9d439769 "kcfi: Rename CONFIGCFICLANG to CONFIGCFI" as it is now a compiler-agnostic option. Using the wrong name results in the code getting compiled out...

UBUNTU-CVE-2026-52988

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: join hook list via splicelistrcu in commit phase Publish new hooks in the list into the basechain/flowtable using splicelistrcu to ensure netlink dump list traversal via rcu is safe while concurrent ruleset...

UBUNTU-CVE-2026-52958

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in osdmapdecode When decoding osdstate and osdweight from an incoming osdmap in osdmapdecode, both are decoded for each osd, i.e., map-maxosd times. The cephdecodeneed check only accoun...

UBUNTU-CVE-2026-53052

In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: qdsp6: topology: check widget type before accessing data Check widget type before accessing the private data, as this could a virtual widget which is no associated with a dsp graph, container and module. Accessing...

UBUNTU-CVE-2026-53070

In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb udptunnelxmitskb / udptunnel6xmitskb are expected to run with BH disabled. After commit 6f1a9140ecda "add xmit recursion limit to tunnel xmit functions", on the path:...

UBUNTU-CVE-2026-53125

In the Linux kernel, the following vulnerability has been resolved: md: fix arraystate=clear sysfs deadlock When "clear" is written to arraystate, mdattrstore breaks sysfs active protection so the array can delete itself from its own sysfs store method. However, mdattrstore currently drops the...

UBUNTU-CVE-2026-53008

In the Linux kernel, the following vulnerability has been resolved: ice: fix race condition in TX timestamp ring cleanup Fix a race condition between icefreetxtstampring and icetxmap that can cause a NULL pointer dereference. icefreetxtstampring currently clears the ICETXFLAGSTXTIME flag after...

UBUNTU-CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

UBUNTU-CVE-2026-53069

In the Linux kernel, the following vulnerability has been resolved: net, bpf: fix null-ptr-deref in xdpmasterredirect for down master syzkaller reported a kernel panic in bondrrgenslaveid reached via xdpmasterredirect. Full decoded trace: https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba...

UBUNTU-CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

UBUNTU-CVE-2026-53039

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate group add input before caching BUG OCFS2IOCGROUPADD can trigger a BUGON in ocfs2setnewbufferuptodate: kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP:...

UBUNTU-CVE-2026-53009

In the Linux kernel, the following vulnerability has been resolved: ice: fix double-free of txbuf skb If icetso or icetxcsum fail, the error path in icexmitframering frees the skb, but the 'first' txbuf still points to it and is marked as valid ICETXBUFSKB. 'nexttouse' remains unchanged, so the...

UBUNTU-CVE-2026-53103

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix potential deadlock in mt7925rocabortsync rocabortsync can deadlock with rocwork. rocwork holds dev-mt76.mutex, while cancelworksync waits for rocwork to finish. If the caller already owns the same mutex,...

UBUNTU-CVE-2026-53041

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix listxattr handling when the buffer is full BUG If an OCFS2 inode has both inline and block-based xattrs, listxattr can return a size larger than the caller's buffer when the inline names consume that buffer exactly...

UBUNTU-CVE-2026-53048

In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2logflush can be called when sdp-sdjdesc has already been deallocated and sdp-sdjdesc is NULL. Commit 35264909e9...

UBUNTU-CVE-2026-52978

In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state PSP version configuration and cryptographic key material, respectively but do not require...