UBUNTU-CVE-2026-74408

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID athtxedmatasklet accesses sc-tx.txqts.qid where ts.qid is a 4-bit hardware field 0-15, but the txq array only has ATH9KNUMTXQUEUES 10 entries. A qid = 10 causes an OOB...

UBUNTU-CVE-2026-72348

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header lengt...

UBUNTU-CVE-2026-74297

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size setrqsize computes the RQ WQE size as "1 rqwqeshift" based on the user-provided rqwqeshift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shi...

UBUNTU-CVE-2026-74429

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the reception of a reply packet before data transmission Fix rxrpcreceivingreply to handle the reception of an apparent reply DATA packet before rxrpc has had a chance to send any request DATA packets on a client call ...

UBUNTU-CVE-2026-74342

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

UBUNTU-CVE-2026-74301

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: fix URB leak in allocmtkintrurb error path When btmtkisopktpad fails, the previously allocated URB is not freed, leaking the urb structure. Add usbfreeurb before returning the error...

UBUNTU-CVE-2026-72413

In the Linux kernel, the following vulnerability has been resolved: sctp: fix errchunk memory leaks in INIT handling When sctpverifyinit encounters unrecognized parameters, it allocates an errchunk to report them. However, this chunk is leaked in several code paths: 1. In sctpsfdo51Binit, if...

UBUNTU-CVE-2026-74319

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix deadlock waiting for ticket during data relocation When performing data relocation on a zoned filesystem, BTRFS can deadlock in handlereservetickets. The relocation process is waiting on a space reservation tick...

UBUNTU-CVE-2026-72502

In the Linux kernel, the following vulnerability has been resolved: tcp: ipv6: clamp default adverting MSS to avoid GSOBYFRAGS 0xFFFF When MTU is large, ip6defaultadvmss can return IPV6MAXPLEN 65535. This is interpreted by TCP as mssclamp, allowing the MSS to reach 65535. However, 0xFFFF is also...

UBUNTU-CVE-2026-74306

In the Linux kernel, the following vulnerability has been resolved: vfio/qat: fix fpos race in qatvfresumewrite qatvfresumewrite checks filp-fpos before taking migf-lock, but copies into the migration-state buffer after taking the lock and re-reading the shared file position. Two concurrent write...

UBUNTU-CVE-2026-72329

In the Linux kernel, the following vulnerability has been resolved: net/liquidio: drop cached VF pcidev LUT The PF SR-IOV enable path caches VF pcidev pointers in dpiringtovfpcidevlut by iterating with pcigetdevice. Those entries do not own a reference, because the iterator drops the previous...

UBUNTU-CVE-2026-72324

In the Linux kernel, the following vulnerability has been resolved: gpio: mvebu: free generic chips on unbind irqallocdomaingenericchips allocates generic chip data that must be freed via irqdomainremovegenericchips. The devres action mvebugpioremoveirqdomain only called irqdomainremove, which on...

UBUNTU-CVE-2026-74256

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix integer overflow in bpfmsgpopdata bounds check start and len are u32, so u64 last = start + len; evaluates start + len in 32-bit and wraps before storing it in last. The bounds check if start = offset + l || las...

UBUNTU-CVE-2026-74316

In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4droprevokedstid nfsd4droprevokedstid has no SCTYPELAYOUT case, so when a client sends FREESTATEID for an admin-revoked layout stid, the default branch releases cllock and returns without unhashing...

UBUNTU-CVE-2026-72371

In the Linux kernel, the following vulnerability has been resolved: afs: Fix the volume AFSVOLUMERMTREE is set on Fix afsinsertvolumeintocell to set AFSVOLUMERMTREE on the volume replaced, not the new volume, as it's now removed from the cell's volume tree. This will cause the old volume to be...

CVE-2026-74289

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't dump dying fibinfo in fibleafnotify. syzbot reported use-after-free in nsimfib4prepareevent. 0 The problem is that the following functions call fibinfohold / refcountinc while dumping fibinfo under RCU, which is...

CVE-2026-74378

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix TOCTOU heap overflow in getsrqwqe getsrqwqe reads wqe-dma.numsge from the shared receive queue buffer, which is mapped into userspace. It validates numsge against maxsge, but then re-reads the same field to calculat...

CVE-2026-74315

In the Linux kernel, the following vulnerability has been resolved: lockd: Avoid hashing uninitialized bytes in nlm4svclookupfile filehash digests the first LOCKDFHHASHSIZE bytes of nfsfh.data when bucketing nlmfiles, independent of fh.size. Commit 3de744ee4e45 "lockd: Use xdrgen XDR functions fo...

CVE-2026-74423

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix leak when pinning ubuf pages When pinuserpagesfast returns fewer pages than requested, the pages that were successfully pinned are not released, leading to a leak. Fix this by unpinning any partially pinned pag...

CVE-2026-74414

In the Linux kernel, the following vulnerability has been resolved: hfsplus: Remove the duplicate attr inode dirty marking action Syzbot reported a null-ptr-deref in 1. If the attributes file is not loaded during system mount, a trigger occurs 1 when setxattr is executed in userspace. Remove the...