CVE-2026-98065

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject key-less BTF for hash maps mapcheckbtf allows a key-less BTF btfkeytypeid == 0 only for maps that have a -mapcheckbtf callback, and leaves the actual decision to that callback. Hash maps used to have no -mapcheckbtf, ...

CVE-2026-98063

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref in btfvarshow btfvarshow calls btftypeidresolve unconditionally, which dereferences btf-resolvedids. That is NULL for a base BTF - e.g. the vmlinux BTF that bpfsnprintfbtf renders against - since base BTF ...

CVE-2026-98064

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref when showing a void BTF type btfmodifiershow resolves the modifier and then calls btftypeopst-show unconditionally. For the void type typeid 0, BTFKINDUNKN kindops has no entry, so -show is NULL. A "const...

CVE-2026-98061

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject tail calls directly from callback frames A tail call from a non-zero frame is modeled as a return from that frame. The verifier makes R0 unknown and calls preparefuncexit for the taken branch. When the current frame i...

CVE-2026-98062

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark signal tracepoint siginfo arguments as scalar The signalgenerate and signaldeliver tracepoints declare their info argument as a struct kernelsiginfo pointer. btfctxaccess therefore treats it as a trusted pointer for tpb...

CVE-2026-98060

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject resilient lock operations in rbtree callbacks bpfrbtreeadd keeps parent and link pointers live across calls to the program-supplied comparison callback. The verifier therefore requires the root's lock to remain held...

CVE-2026-98058

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark syscall helpers as sleepable bpfsysbpf executes the bpf2 syscall body, which can take mutexes, allocate with GFPKERNEL, and wait for an RCU grace period. bpfsysclose reaches closefd and filpclose, which can sleep as wel...

CVE-2026-98059

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark schedprocesswait argument as nullable dowait passes wo-wopid to the schedprocesswait tracepoint. kernelwait4 leaves wopid NULL for wait4-1, and kernelwaitidprepare does likewise for waitidPALL. btfctxaccess currently...

CVE-2026-98057

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nrsubbufs to persistent ring buffer validation Sashiko reported that the code was using meta-nrsubbufs without making sure that it matched the nrpages + 1 on data that was assuming the two were the same...

CVE-2026-98055

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Clean up the bus when fetching ML caps fails sndhdacextbusgetmlcapabilities may fail and its return code shall be checked and accounted for. Address the issue by updating the error-path for avspciprobe. At the...

CVE-2026-98056

In the Linux kernel, the following vulnerability has been resolved: nvme: remove stale namespaces by NSID range during scan nvmescannslist drops the stale namespaces in each gap in the reported NSID list one NSID at a time. Every iteration calls nvmefindgetns to look the namespace up and removes ...

CVE-2026-98054

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Fix unbalanced module reference count straceopen invokes trymoduleget which on success takes the module reference. If any follow up operation causes straceopen to fail, the refcount shall be put down...

CVE-2026-98053

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Refactor and fix initconfig access Existing code accesses enties found in -initconfigs array through indexes that are part of -configids array. Those two are limited by: -numinitconfigs and -numconfigids...

CVE-2026-98052

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: clear txcb-last before writing each descriptor bcmaspxmit only wrote txcb-last = true for the final fragment of an SKB; non-final fragments left the field untouched. If a descriptor slot was reused while it still hel...

CVE-2026-98050

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumptp: Fix napigroreceive call from GC workqueue context Currently mlxswsp1ptphtgccollect is run from the PTP garbage-collection workqueue, rather than the NAPI poll context. For any unmatched PTP entries carrying an...

CVE-2026-98051

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix txspbringfull checking same slot cnt times The loop initialised nextindex from intf-txspbindex on every iteration, so incrring always produced the same result and only one slot was ever tested. Move the...

CVE-2026-98049

In the Linux kernel, the following vulnerability has been resolved: bpf: zero extend the result of an arena 32-bit cmpxchg bpfconvertctxaccesses rewrites an atomic on an arena pointer from BPFSTX | BPFATOMIC to BPFSTX | BPFPROBEATOMIC, and it runs before bpfoptsubregzextlo32rndhi32. That pass emi...

CVE-2026-98047

In the Linux kernel, the following vulnerability has been resolved: bpf: Check ancestor frames for rbtree callbacks bpfrbtreeadd invokes its comparator while the caller holds the root lock. The native insertion code retains raw parent and link pointers across the callback, so the verifier prohibi...

CVE-2026-98048

In the Linux kernel, the following vulnerability has been resolved: bpf: don't rewrite bpffastcall patterns entered by a jump markfastcallpatternforcall must ensure that matched "spill; call; fill" instruction series is not interrupted by a jump. Otherwise the rewrite applied by...

CVE-2026-98045

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark faultable stack helpers as sleepable The faultable variants of bpfgetstack and bpfgettaskstack pass mayfault=true into the common stack collection code. Resolving user-space build IDs may then call buildidparsefile and...

CVE-2026-98046

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpfbtffindbynamekind as sleepable When bpfbtffindbynamekind finds a type in module BTF, it returns a new BTF object fd through btfnewfd. This reaches anoninodegetfd, which can sleep while allocating or expanding the...

CVE-2026-98044

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject legacy packet loads from callbacks checkldabs models a failed BPFLDABS or BPFLDIND in a subprogram as an implicit return with R0 set to zero. It calls preparefuncexit to explore this synthesized path. When the load is...

CVE-2026-98043

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't infer non-NULL from a pointer with an unbounded offset regnotnull decides that a register holds a non-NULL value by looking at its type alone. For pointer types that allow arithmetic the type only guarantees a non-NULL...

CVE-2026-98042

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't resurrect a scalar id dropped by collectlinkedregs checkcondjmpop copies the compared registers into env-false,truereg1,2 before collectlinkedregs runs and copies those snapshots back into both branch states afterwards...

CVE-2026-98040

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark the zero register precise for a register-form NULL check checkcondjmpop accepts "if rA rB" as a NULL check for a nullable pointer rA when rB is a scalar known to be zero, lifts PTRMAYBENULL from rA in the corresponding...

CVE-2026-98041

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't predict JMP32 pointer vs zero comparisons Consider the following program: r1 = mapvalue; / low 32 bits are zero at runtime / r6 = 0xdead000000000000; if w1 != 0 goto l1; l0: r1 += r6; r2 = u64 r1 + 0; exit; l1: r6 = 0;...

CVE-2026-98039

In the Linux kernel, the following vulnerability has been resolved: bpf: Require MEMPERCPU for percpu kptr stores mapkptrmatchtype treats permflags as the set of register type flags that a kptr field permits. Adding MEMPERCPU to that set for BPFKPTRPERCPU does not require the source register to...

CVE-2026-98037

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

CVE-2026-98038

In the Linux kernel, the following vulnerability has been resolved: bpf: Keep refcountacquire nullable for borrowed RCU kptrs bpfrefcountacquire is fallible for a borrowed reference because the object may have reached a zero refcount. The verifier therefore keeps KFRETNULL on the return value...

CVE-2026-98036

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve special fields in recycled rhtab elements rhtabmapupdateelem initializes special fields after obtaining an element from bpfmemcachealloc. The allocator can return a fresh, zeroed unit, or recycle one from its...

CVE-2026-98035

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel special fields when recycling rhtab elements rhtabmapupdateexisting and rhtabdeleteelem call bpfobjfreefields when replacing or deleting a value. These map operations can run from BPF programs in NMI context, where...

CVE-2026-98034

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark NULL kptr stores precise checkmapkptraccess permits a scalar store into an untrusted kptr field only when the register is known to contain zero. Unlike other verifier checks whose outcome depends on a scalar value, it...

CVE-2026-98032

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix subbuf resize races with tracepiperaw readers Concurrent subbuffer resizes may crash tracepiperaw readers or leak uninitialized memory to userspace due to stale size values. Modify ringbufferallocreadpage to handle t...

CVE-2026-98033

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve inner map identity in callback frames Callback frame constructors initialize map-typed argument registers with markregknownzero and then restore mapptr. This clears mapuid, which is the only field distinguishing inn...

CVE-2026-98031

In the Linux kernel, the following vulnerability has been resolved: nexthop: Initialize extack in removenhgrpentry removenhgrpentry prints the extack message when a listener fails to replace the reduced nexthop group. However, extack is not initialized and listeners are not required to set a...

CVE-2026-98029

In the Linux kernel, the following vulnerability has been resolved: eth: nfp: bound the ntuple rule dump by the caller's buffer size nfpnetgetfsloc dumps every entry of nn-fs.list into rulelocs without consulting cmd-rulecnt, which is how many entries the caller had room for. ETHTOOLGRXCLSRLALL...

CVE-2026-98030

In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcmsf2: bound the CFP rule dump by the caller's buffer size bcmsf2cfprulegetall walks the whole cfp.unique bitmap into rulelocs without consulting nfc-rulecnt, which is how many entries the caller had room for...

CVE-2026-98028

In the Linux kernel, the following vulnerability has been resolved: eth: nfp: drop the replaced rule from the list when reprogramming fails nfpnetfsadd replaces an existing rule by deleting it from the hardware, decrementing nn-fs.count and programming the new one. If nfpnetfsaddhw fails the old...

CVE-2026-98027

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: bound the policy rule dump by the caller's buffer size mv88e6xxxgetrxnfc uses rxnfc-rulecnt as the write index while dumping the policy IDR, clobbering the input value before it has been looked at. That input...

CVE-2026-98026

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mcast: properly convert mglist to rcu Sashiko reported a bug 1 that brmulticastdelportgroup unlists the port group not using proper rcu helper that preserves the next pointer and after that immediately frees the port...

CVE-2026-98025

In the Linux kernel, the following vulnerability has been resolved: net: usb: cx82310eth: drop URB after 0xffff reboot sentinel to prevent partialdata heap overflow The 0xffff length sentinel detects a router reboot and schedules re-enabling of ethernet mode, but then falls through to the rest of...

CVE-2026-98024

In the Linux kernel, the following vulnerability has been resolved: s390/ism: folioput after error dmb-cpuaddr was allocated via folioalloc. Use folioput instead of kfree in the error exit of ismallocdmb to avoid slab allocator corruption. While at it, reset dmb-cpuaddr after folioput to avoid...

CVE-2026-98022

In the Linux kernel, the following vulnerability has been resolved: net: cap txqueuelen at S16MAX to prevent oversized ring allocations Several subsystems allocate ring buffers sized by dev-txqueuelen with no upper bound. An unprivileged user via unshare -Urn can set a huge txqueuelen and exhaust...

CVE-2026-98023

In the Linux kernel, the following vulnerability has been resolved: vxlan: reject dynamic fdb entries that reference a nexthop id The commit cited in the Fixes tag allowed VXLAN FDB entries to point to FDB nexthops so that overlay traffic could be load balanced across multiple VTEPs. Such entries...

CVE-2026-98021

In the Linux kernel, the following vulnerability has been resolved: net: reject oversized txqueuelen at netlink parse time rtnlcreatelink assigns IFLATXQLEN directly to dev-txqueuelen without going through netifchangetxqueuelen, so a device created with "ip link add ... txqueuelen 500000" bypasse...

CVE-2026-98020

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix cmdregs access racing BAR unmap on reset pdscresetprepare and pdscresetdone's pdscmapbars error path clear/iounmap cmdregs without devcmdlock, and pdsclegacyfirmwareupdate's download loop derefs cmdregs after droppin...

CVE-2026-98019

In the Linux kernel, the following vulnerability has been resolved: bpf: mark a NULL call argument precise checkfuncarg allows bpfregisterisnull for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scala...

CVE-2026-98017

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

CVE-2026-98018

In the Linux kernel, the following vulnerability has been resolved: net: mctp: i3c: serialize probe with bus removal mctpi3cprobe drops busdevslock after finding the matching bus. A concurrent I3CNOTIFYBUSREMOVE can then unregister and free the bus netdev before probe passes its private data to...

CVE-2026-98016

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free race in samplerestoreput Concurrent teardown of TC sample rules sharing the same restore context may re-read restore-count after dropping restorelock. At that point another thread may already have...