CVE-2026-74259

In the Linux kernel, the following vulnerability has been resolved: cifs: remove all cifs files before kill super Cifs files may be put into fileinfoputwq during umounting cifs. After umount done, cifsFileInfoputfinal is called, which cause following BUG: BUG: kernel NULL pointer dereference,...

UBUNTU-CVE-2026-72325

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Avoid enabling BRS from the SVM reload path Branch Sampling BRS and Last Branch Record LBR are mutually exclusive hardware features, and users of both are tracked via cpuc-lbrusers. When SVM is toggled on a CPU...

UBUNTU-CVE-2026-74332

In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp-sdw-sof: Bound DAI link iteration createsdwdailinks walks sofdais until it finds an entry with initialised cleared, but sofdais is allocated with exactly numends entries. If all entries are initialised, the loop...

UBUNTU-CVE-2026-72312

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: fix VF bringup affecting PF promiscuous state Mbox handling of nixsetrxmode for a VF with promiscuous and allmulti flags set to false causes deletion of the PF's promiscuous and allmulti MCAM rules. This occurs...

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-2026-72348

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-2026-74319

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-2026-72342

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix HV VHCA stats agent registration race mlx5ehvvhcastatscreate registers the stats agent through mlx5hvvhcaagentcreate. The helper publishes the agent in hvvhca-agentstype under agentslock and immediately schedules a...

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-2026-72480

In the Linux kernel, the following vulnerability has been resolved: iio: adc: xilinx-ams: fix out-of-bounds channel lookup in event handling amseventtochannel may return a pointer past the end of dev-channels when no matching scanindex is found. This can lead to invalid memory access in...

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-2026-74429

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-2026-74297

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-2026-74301

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-2026-74408

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-2026-72316

In the Linux kernel, the following vulnerability has been resolved: dm era: fix NULL pointer dereference in metadataopen metadataopen returns NULL when kzallocobj fails, but the caller eractr only checks ISERRmd. Since ISERRNULL returns false, the NULL pointer is treated as a valid result and lat...

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-2026-72399

In the Linux kernel, the following vulnerability has been resolved: net: enetc: check the number of BDs needed for xdpframe The size of xdpredirectarr array is ENETCMAXSKBFRAGS. However, the number of fragments contained in xdpframe may be greater than or equal to ENETCMAXSKBFRAGS, which will cau...

UBUNTU-CVE-2026-72392

In the Linux kernel, the following vulnerability has been resolved: ipv6: fib6: fix NULL deref in fib6walkcontinue on multi-batch dump inet6dumpfib saves its progress in cb-args1 as a positional index within the current hash chain. Between batches, a concurrent fib6newtable can insert a new table...

UBUNTU-CVE-2026-72495

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxtre: Avoid repeated requests to allocate WC pages Applications can request multiple WC pages for the same ucontext. As of now, only 1 WC page per ucontext is supported. Add a lock to avoid concurrent access and a check to...