UBUNTU-CVE-2026-89711

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

UBUNTU-CVE-2026-89511

In the Linux kernel, the following vulnerability has been resolved: qede: Fix NULL pointer dereference in TPA fragment processing Under memory pressure, the qede driver encounters NULL pointer dereferences when processing TPA continuation fragments. Commit 8a8633978b84 "qede: Add buildskb support...

CVE-2026-89660

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during admin state revocation A stateid holds only a bare pointer to its nfs4client; a stateid reference does not pin it. The client survives only because destroyclient drains its stateids befo...

UBUNTU-CVE-2026-89660

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during admin state revocation A stateid holds only a bare pointer to its nfs4client; a stateid reference does not pin it. The client survives only because destroyclient drains its stateids befo...

CVE-2026-89712

In the Linux kernel, the following vulnerability has been resolved: NFSD: restart sscexpireumount walk after dropping nfsdssclock nfsd4sscexpireumount walks nn-nfsdsscmountlist with listforeachentrysafeni, tmp, .... For each expired entry it sets nsuibusy = true, drops nfsdssclock to run mntput o...

CVE-2026-89563

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: use skbcowhead in ip6tnlxmit ip6tnlxmit may need to expand headroom before it can push the outer IPv6 and optional encap headers. It currently does that with skbreallocheadroom, copies skb-sk ownership, consumes the...

CVE-2026-89635

In the Linux kernel, the following vulnerability has been resolved: ksmbd: only rebind the reopened file's own oplock on durable reconnect ksmbdreopendurablefd walks the inode's moplist and rebinds every detached oplock to the reconnecting session: listforeachentryrcuop, &ci-moplist, opentry,...

CVE-2026-89505

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Guard legacy bundles without methodelm The legacy write path dispatches through a uverbsapiwritemethod, but the uverbsattrbundle passed to provider code does not have an ioctl method element. If malformed provider...

CVE-2026-89547

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Check svc pool percpu counter allocation svccreate initializes three per-pool percpucounter stats and ignores every return value. On SMP, percpucounterinit fails when allocpercpugfp cannot satisfy the allocation, leaving...

CVE-2026-89477

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

CVE-2026-80971

In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: clear the URB pointers on disconnect bcd2000freeusbrelatedresources frees both URBs and leaves the pointers behind: usbkillurbbcd2k-midiouturb; usbkillurbbcd2k-midiinurb; usbfreeurbbcd2k-midiouturb;...

CVE-2026-80992

In the Linux kernel, the following vulnerability has been resolved: net: ravb: avoid dereferencing an invalid PTP clock The PTP clock is unavailable before the first open, so querying its index can dereference a NULL pointer. Registration failures can also leave an error pointer in priv-ptp.clock...

CVE-2026-80981

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix use-after-free of the LLC qentry in smcllcsrvaddlink smcllcsrvaddlink keeps addllc pointing into the queue entry: addllc = &qentry-msg.addlink; smcllc.c:1482 ... smcllcsaveaddlinkinfolinknew, addllc; smcllc.c:1494...

CVE-2026-80984

In the Linux kernel, the following vulnerability has been resolved: net/smc: do not dereference an unset send buffer on the SMC-D teardown path smcclosestreamwait calls smctxpreparedsends from inside its skwaitevent condition, and skwaitevent evaluates that condition once with the socket lock...

UBUNTU-CVE-2026-80984

In the Linux kernel, the following vulnerability has been resolved: net/smc: do not dereference an unset send buffer on the SMC-D teardown path smcclosestreamwait calls smctxpreparedsends from inside its skwaitevent condition, and skwaitevent evaluates that condition once with the socket lock...

UBUNTU-CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

UBUNTU-CVE-2026-89671

In the Linux kernel, the following vulnerability has been resolved: nfsd: gate nfs3 setacl by argp-mask nfsd3procsetacl calls setposixacl unconditionally for both ACLTYPEACCESS and ACLTYPEDEFAULT, passing argp-aclaccess and argp-acldefault verbatim. The NFSv3 ACL decoder only populates those...

UBUNTU-CVE-2026-89547

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Check svc pool percpu counter allocation svccreate initializes three per-pool percpucounter stats and ignores every return value. On SMP, percpucounterinit fails when allocpercpugfp cannot satisfy the allocation, leaving...

UBUNTU-CVE-2026-81008

In the Linux kernel, the following vulnerability has been resolved: interconnect: Fix use after free in iccget and oficcgetbyindex In oficcgetbyindex and iccget, if the dynamic allocation for path-name fails via kasprintf, the error handling path directly calls kfreepath to free the path object a...

UBUNTU-CVE-2026-89442

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...