CVE-2026-63870

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: only accept IPv6 packets in lowpanxmit The aoe driver or similar generates a non-IPv6 packet e.g., ETHPAOE and queues it for transmission via devqueuexmit on a 6LoWPAN interface configured by the user or test...

CVE-2026-63871

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix data-race on isopi fields in hcigetroute calls isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync call hcigetroute using isopisk-dst, isopisk-src, and isopisk-srctype without holding locksock. Thes...

CVE-2026-16221

Impact: fast-uri versions from 2.3.1 through 4.1.0 including the 3.x line up to 3.1.3 and the 2.x line up to 2.4.2 do not treat a literal backslash character U+005C as an authority delimiter. Node's native WHATWG URL parser, used by fetch, undici, and Node's http and https clients, normalizes the...

CVE-2026-53381

In the Linux kernel, the following vulnerability has been resolved: virtiofs: fix UAF on submount umount iput called from fusereleaseend can Oops if the super block has already been destroyed. Normally this is prevented by waiting for numwaiting to go down to zero before commencing with super blo...

CVE-2026-53383

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2checkusersession takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work-sess the session bound by the first operation and...

CVE-2026-53392

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count fflayoutalloclseg decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzallocobjs, and the current code only rejects...

CVE-2026-53400

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2cgetadapter which takes a reference to the embedded struct device. Make sure that the adapter including its struct device has been...

CVE-2026-63827

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

CVE-2026-63811

In the Linux kernel, the following vulnerability has been resolved: f2fs: read COW data with the original inode during atomic write When updating an atomic-write file, f2fswritebegin may read the previously written data back from the COW inode: prepareatomicwritebegin locates the block in the COW...

CVE-2026-63803

In the Linux kernel, the following vulnerability has been resolved: hdlcppp: sync per-proto timers before freeing hdlc state Each PPP control protocol LCP/IPCP/IPV6CP embedded in struct ppp registers a timer via timersetup. That struct ppp is the hdlc-state allocation, which detachhdlcprotocol...

CVE-2026-63804

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix use-after-free in gfs2qddealloc gfs2qddealloc, called as an RCU callback from gfs2qddispose, accesses the superblock object sdp through qd-qdsbd after freeing qd. It does so to decrement sdquotacount and wake up...

CVE-2026-63805

In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix nxcryptoctxexit argument nxcryptoctxshashexit calls nxcryptoctxexit with cryptoshashctx... but cryptoshashctx gives a nxcryptoctx , not a cryptotfm . Fix the type in nxcryptoctxexit and drop the bogus cryptotfmct...

CVE-2026-63806

In the Linux kernel, the following vulnerability has been resolved: KVM: Replace guest-triggerable BUGON in ioeventfd datamatch with getunaligned Drop a BUGON that has been reachable since it was first added, way back in 2009, and instead use getunaligned to perform potentially-unaligned accesses...

CVE-2026-63807

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

CVE-2026-63816

In the Linux kernel, the following vulnerability has been resolved: f2fs: atomic: fix UAF issue on f2fsinodeinfo.atomicinode - ioctlF2FSIOCGARBAGECOLLECTRANGE - shrink - f2fsgc - gcdatasegment - radatablockcowinode - mapping = F2FSIinode-atomicinode-imapping : f2fsiscowfilecowinode is true -...

CVE-2026-63817

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate compress cache inode only when enabled F2FSCOMPRESSINO uses NMIsbi-maxnid as the synthetic inode number for the compressed page cache inode. That inode only exists when the compresscache mount option is enabled. Wh...

CVE-2026-63818

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate orphan inode entry count f2fsrecoverorphaninodes trusts the orphan block entrycount when replaying orphan inodes from the checkpoint pack. A corrupted entrycount larger than F2FSORPHANSPERBLOCK makes the recovery...

CVE-2026-63819

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on f2fsgetnodefoliora kernel BUG at fs/f2fs/file.c:845! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller 0 PREEMPTfull Hardware name: QEMU...

CVE-2026-63822

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix warning when unbinding If there is an error during some initialization related to firmware, the buffers dp-txringi.txstatus are released. However this is released again when the device is unbinded ath11kpci, and...

CVE-2026-63825

In the Linux kernel, the following vulnerability has been resolved: gcov: use atomic counter updates to fix concurrent access crashes GCC's GCOV instrumentation can merge global branch counters with loop induction variables as an optimization. In inflatefast, the inner copy loops get transformed ...

CVE-2026-53401

In the Linux kernel, the following vulnerability has been resolved: fbdev: omap2: fix use-after-free in omapfbmmap omapfbmmap has a race condition with OMAPFBSETUPPLANE ioctl that can lead to use-after-free: The fbmmap entry point holds mmlock but not lock fbinfo-lock, while ioctl handlers like...

CVE-2026-53394

In the Linux kernel, the following vulnerability has been resolved: nfsd: avoid leaking pre-allocated openowner on unconfirmed retry race When findorallocopenstateowner encounters an unconfirmed owner, it calls releaseopenowner and sets oo = NULL. Control then falls through past the if oo guard -...

CVE-2026-63799

In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: Fix OOB clearbit when CID is MMCIDUNSET in fixup path In mmcidfixupcpustotasks, when rq-curr has the target mm and mmcid.active is set, the CID is checked with cidintransit before setting the transition bit. In per-C...

CVE-2026-63826

In the Linux kernel, the following vulnerability has been resolved: fbdev: fix use-after-free in storemodes storemodes replaces a framebuffer's modelist with modes from userspace. On success it frees the old modelist with fbdestroymodelist. Two fields still point into that freed list. One pointer...

CVE-2026-63834

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tpmeter: restrict number of unacked list entries When the unackedlist is unbound, an attacker could send messages with small lengths and appropriated seqno + gaps to force the receiver to allocate more and more...

CVE-2026-63829

In the Linux kernel, the following vulnerability has been resolved: net: ipgre: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

CVE-2026-63832

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: add wcid publish check in mt76staadd Since mt7925macstaadd publishes wcid, add publish check in mt76staadd to avoid reinitializing the wcid-polllist. Found dev-stapolllist corruption when using mt7925 and 7.1-rc4...

CVE-2026-63833

In the Linux kernel, the following vulnerability has been resolved: ntfs3: reject direct userspace writes to reserved $LX xattrs NTFS3 uses $LXUID, $LXGID, $LXMOD and $LXDEV as internal WSL permission metadata and reloads them into iuid, igid and imode from ntfsgetwslperm. Because the empty-prefi...

CVE-2026-53398

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix SECINFONONAME decode error cleanup nfsd4decodesecinfononame currently initializes sinexp after decoding sinstyle. If the XDR stream is truncated, the decoder returns nfserrbadxdr before sinexp is initialized. Since comm...

CVE-2026-63802

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

CVE-2026-53388

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before replacing page cache folio fusetrymovefolio unlocks the request on entry but does not re-lock it on the success path. This means fusechanabort can end the request and free the fuseioargs eg...

CVE-2026-63800

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfsupdatelayout When hitting the NFSLAYOUTRETURN branch in pnfsupdatelayout, the code calls pnfspreparetoretrylayoutgetlo. If it succeeds, pnfsputlayouthdrlo is called before tracepnfsupdatelayout,...

CVE-2026-63808

In the Linux kernel, the following vulnerability has been resolved: exfat: fix potential use-after-free in exfatfinddirentry In exfatfinddirentry, the bufferhead obtained from exfatgetdentry is released with brelsebh before the fall-through TYPEEXTEND branch reads the directory entry through ep...

CVE-2026-53385

In the Linux kernel, the following vulnerability has been resolved: vcscreen: fix null-ptr-deref in vcsnotifier during concurrent vcswrite A KASAN null-ptr-deref was observed in vcsnotifier: BUG: KASAN: null-ptr-deref in vcsnotifier+0x98/0x130 Read of size 2 at addr qmpcmdname: qmpcapabilities,...

CVE-2026-63823

In the Linux kernel, the following vulnerability has been resolved: keys: Pin requestkeyauth payload in instantiate paths A: requestkey B: KEYCTLINSTANTIATEIOV ================ ========================= create auth key store rka in auth key wait for helper get auth key load rka from auth key copy...

CVE-2026-53402

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: fix out-of-bounds read in errout of fbcondosetfont When fbcondosetfont fails e.g., due to a memory allocation failure inside vcresize under heavy memory pressure, it jumps to the errout label to roll back the consol...

CVE-2026-63830

In the Linux kernel, the following vulnerability has been resolved: net: skmsg: preserve sg.copy across SG transforms The skmsg sg.copy bitmap is part of the scatterlist entry ownership state. A set bit tells skmsgcomputedatapointers not to expose the entry through writable BPF ctx-data. This...

CVE-2026-63794

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sevdbgcrypt for ENCRYPT path In sevdbgcrypt, the per-iteration transfer length is bounded by the source page offset PAGESIZE - soff but not by the destination page offset PAGESIZE - doff. When doff...

CVE-2026-63810

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it...

CVE-2026-63796

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject oversized group bitmap descriptors ocfs2validategdparent only bounds bgbits against the parent allocator's chain geometry. A malicious descriptor can still claim a bgsize/bgbits pair that exceeds the bitmap bytes th...

CVE-2026-63798

In the Linux kernel, the following vulnerability has been resolved: irqchip/imgpdc: Fix resource leak, add missing chained handler cleanup on remove The driver allocates domain generic chips using irqallocdomaingenericchips during probe and sets up chained handlers using...

CVE-2026-53384

In the Linux kernel, the following vulnerability has been resolved: serial: 8250dw: unregister 8250 port if clknotifierregister fails dw8250probe registers the 8250 port via serial8250register8250port and then, if the device has a clock, registers a clock notifier. If clknotifierregister fails,...

CVE-2026-53389

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in delasync path In tcpaodeletekey, the delasync path skips the currentkey and rnextkey validity checks present in the synchronous path, assuming these pointers are always NULL on LISTEN...

CVE-2026-53390

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds read in smbcheckpermdacl The permission-check ACE walk in smbcheckpermdacl validates the ACE header size and caps sid.numsubauth at SIDMAXSUBAUTHORITIES, but it never checks that ace-size is actually larg...

CVE-2026-63820

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix missing read bio submission on large folio error f2fsreaddatalargefolio can keep a read bio across multiple readahead folios. If a later folio hits an error before any of its blocks are added to the bio, folioinbio is...

CVE-2026-63821

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: usb: fix memory leaks on USB write failures When rtwusbwriteport fails to submit a USB Request Block URB e.g., due to device disconnect or ENOMEM, the completion callback is never executed. Currently, the driver...

CVE-2026-63795

In the Linux kernel, the following vulnerability has been resolved: 9p: avoid putting oldfid in p9clientwalk error path When p9clientwalk is called with clone set to false, fid aliases oldfid. If the walk subsequently fails after the request has been sent, the error path jumps to clunkfid, which...

CVE-2026-63809

In the Linux kernel, the following vulnerability has been resolved: bpf: use kvfree for replaced sysctl write buffer procsyscallhandler allocates its temporary sysctl buffer with kvzalloc and passes it to cgroupbpfrunfiltersysctl. Since kvzalloc may fall back to vmalloc for large allocations,...

CVE-2026-63801

In the Linux kernel, the following vulnerability has been resolved: tipc: fix slab-use-after-free Read in tipcaeaddecryptdone tipcaeaddecrypt goes straight from tipcbearerholdb to cryptoaeaddecryptreq without taking a reference on the netns, unlike the encrypt path. When cryptoaeaddecrypt is...

CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...