UBUNTU-CVE-2026-74681

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: check ibuflen against rxbuflen in bulk msg ibuflen is the bulk IN receive buffer size, but the EMSGSIZE check in usbiobulkmsg compares it against txbuflen — the bulk OUT endpoint size. Both are taken independent...

UBUNTU-CVE-2026-74590

In the Linux kernel, the following vulnerability has been resolved: fsverity: Fix bpfgetfsveritydigest dynptr assumptions The BPF verifier and the dynptr abstraction ensure that the memory space referenced by a dynptr remains valid. They do not, however, provide any guarantee that the contents of...

UBUNTU-CVE-2026-74712

In the Linux kernel, the following vulnerability has been resolved: vdpa/mlx5: Fix buffer length in createdirectkeys We have seen in our CI the following KASAN message: BUG: KASAN: slab-out-of-bounds in cmdexec+0x550/0xca0 mlx5core Read of size 272 at addr 0000000176795020 by task...

UBUNTU-CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

UBUNTU-CVE-2026-74679

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Use unsigned int for ndpindex The variable ndpindex is declared as a signed integer, but it stores the return value of getncm, which is unsigned. A malicious host can supply a large offset that overflows the...

UBUNTU-CVE-2026-74658

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent robust futex exit race some more A robust futex unlock stores 0 over the whole futex value - wiping FUTEXWAITERS - and wakes a single waiter. That wakeup is a one-shot notification: the protocol relies on its...

UBUNTU-CVE-2026-74720

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer state for commuted arithmetic When scalar += pointer is handled in adjustptrminmaxvals, the destination register inherits the pointer state from the source pointer. Copying only selected fields is fragile...

UBUNTU-CVE-2026-74657

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix fibnlmsgsize for RTAVIA nexthops fibnlmsgsize still estimates nexthop space as if every gateway is encoded as an IPv4 RTAGATEWAY attribute. IPv4 routes can also carry an IPv6 gateway, which fibnexthopinfo dumps as RTAVI...

UBUNTU-CVE-2026-74716

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix locally exploitable BUGON in amdxdnainsertpages In amdxdnainsertpages, vmflagsmod sets VMMIXEDMAP and clears VMPFNMAP. If an unprivileged userspace process mmaps a non-imported GEM object and then calls...

UBUNTU-CVE-2026-74661

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix netdev use-after-free in beacon worker mac802154beaconworker reads local-beaconreq under RCU and derives the sub-interface from the request, but then drops the RCU read lock and continues to use both sdata and the...

UBUNTU-CVE-2026-74662

In the Linux kernel, the following vulnerability has been resolved: inet: frags: publish queues before arming timer inetfragcreate arms the fragment queue timer before inserting the queue into the fqdir rhashtable. If the namespace fragment timeout is zero or negative, the timer can run before th...

UBUNTU-CVE-2026-74649

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix missing shared-key auth challenge length check The WEP shared-key authentication handler uses the challenge-text element's attacker-controlled length without checking it against the fixed 128-byte chgtxt...

UBUNTU-CVE-2026-74687

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9wdt: prevent timer rearm during teardown at91ping rearms the watchdog timer from its callback. timerdelete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver...

UBUNTU-CVE-2026-74617

In the Linux kernel, the following vulnerability has been resolved: dibs: initialise dibs-lock in dibsdevalloc dibs-lock is initialised by dibsdevadd, but a dibs device can already take interrupts before that call: ismprobe runs ismdevinit, and hence requestirq, before it calls dibsdevadd. No...

UBUNTU-CVE-2026-74732

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

UBUNTU-CVE-2026-74640

In the Linux kernel, the following vulnerability has been resolved: ALSA: FCP: fix OOB write in fcpmeterctlget fcpioctlsetmetermap bounds the user-supplied Level Meter map size by the driver's own limit of 255 if map.mapsize 255 || map.meterslots 255 return -EINVAL; and passes it to fcpaddnewctl ...

UBUNTU-CVE-2026-74615

In the Linux kernel, the following vulnerability has been resolved: vxlan: do not arm the ageing timer on a device that is down vxlanchangelink arms vxlan-agetimer whenever the requested ageing interval differs from the configured one: if conf.ageinterval != vxlan-cfg.ageinterval...

UBUNTU-CVE-2026-74698

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix BQL reset on SQ re-activation mlx5equeuestart deactivates and re-activates all channels but closes only the queue being restarted. mlx5eactivatetxqsq then unconditionally calls netdevtxresetqueue, zeroing the BQL...

UBUNTU-CVE-2026-74627

In the Linux kernel, the following vulnerability has been resolved: net: devmem: prevent net-iov / page mixing We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow mixing in zerocopyfillskbfromdevmem...

UBUNTU-CVE-2026-74699

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix memory leak in execqueuesethangreplaystate The q-replaystate is blindly overwritten, which can potentially leak memory that was previously allocated by vmemdupuser. Return an error if q-replaystate is not empty...

UBUNTU-CVE-2026-74611

In the Linux kernel, the following vulnerability has been resolved: tls: rx: restore msgiter before TLS 1.3 optimistic retry tlsdecryptsg advances msg-msgiter when it maps user pages for the optimistic TLS 1.3 zero-copy path. If the decrypted record turns out not to be unpadded application data,...

UBUNTU-CVE-2026-74663

In the Linux kernel, the following vulnerability has been resolved: net/sched: reject overly deep qdisc hierarchies Deep qdisc hierarchies can lead to excessive recursion in qdisc tree walkers and exhaust the kernel stack. The existing loop check does not cover the create-and-graft path, so a...

UBUNTU-CVE-2026-74729

In the Linux kernel, the following vulnerability has been resolved: soc: aspeed: lpc-snoop: Fix usercopy overflow in snoopfileread putfifowithdiscard acts as both producer and consumer on the kfifo: it calls kfifoskip advances out and kfifoput advances in from the IRQ handler without synchronizin...

UBUNTU-CVE-2026-74589

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

UBUNTU-CVE-2026-74723

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject inline extents without valid headers BUG For a crafted btrfs image, the following KASAN can be triggered when reading an inline lzo compressed file extent: BUG: KASAN: slab-out-of-bounds in...

UBUNTU-CVE-2026-74619

In the Linux kernel, the following vulnerability has been resolved: ovl: don't warn when the mount is completed from another user namespace fsopen records the caller's user namespace in fc-userns and hands back an ordinary file descriptor. Nothing ties the task that calls fsconfigFSCONFIGCMDCREAT...

UBUNTU-CVE-2026-74689

In the Linux kernel, the following vulnerability has been resolved: net/atm: fix slab-out-of-bounds read in vccsetsockopt vccsetsockopt contained an ineffective optlen check: if SOLEVELMATCHoptname, level && optlen != SOSIZEoptname return -EINVAL; If SOLEVELMATCHoptname, level evaluated to false...

UBUNTU-CVE-2026-74632

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

UBUNTU-CVE-2026-74635

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

UBUNTU-CVE-2026-74624

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrack: defer invalid log until after unlock TCP and SCTP conntrack paths can emit invalid-packet logs while ct-lock is still held. When invalid logging is routed to nfnetlinklog and conntrack export is enabled, t...

UBUNTU-CVE-2026-74641

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: bound the hwdep mmap fault offset sndus428ctlsvmfault turns the faulting page offset into a kernel address with no bound of any kind: offset = vmf-pgoff us428ctlssharedmem + offset; page = virttopagevaddr; getpagepag...

UBUNTU-CVE-2026-74626

In the Linux kernel, the following vulnerability has been resolved: NTB: ntbnetdev: Preserve RX queue depth on allocation failure ntbnetdevrxhandler hands the received skb to the network stack before allocating its replacement. If the allocation fails, nothing is reposted. Every failure therefore...

UBUNTU-CVE-2026-74591

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: filemapaddfolio restore index before retrying In filemapaddfolio's split-a-conflict loop, xassetorder is applied repeatedly: each application modifies xas.xaindex, rounding it down according to the splitorder attempte...

UBUNTU-CVE-2026-74647

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Remove buffer from list prior to unmap operation fastrpcreqmunmapimpl is called to unmap any buffer. The buffer is getting removed from the list after it is unmapped from DSP. This can create potential race...

UBUNTU-CVE-2026-74606

In the Linux kernel, the following vulnerability has been resolved: eventfs: Fix use-after-free in eventfsremoverec eventfsremoverec recursively removes the child at the current loop position. After the recursive call returns, listforeachentry advances by reading list.next from the removed child...

UBUNTU-CVE-2026-74622

In the Linux kernel, the following vulnerability has been resolved: net: atlantic: free RX pages of consumed but not refilled buffers aqringrxdeinit only walks swhead, swtail, the region posted to hardware. Since the page reuse strategy was added, a cleaned RX buffer keeps its page and its DMA...

UBUNTU-CVE-2026-74719

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix qentry overwrite for CONFIRMLINK and ADDLINKCONT in smcllceventhandler The SMCLLCCONFIRMLINK / SMCLLCADDLINKCONT branch in smcllceventhandler stores an incoming qentry into the local LLC flow without first checking...

UBUNTU-CVE-2026-74633

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in module event cache removal A module-only event filter such as ":mod:foo" is cached with a NULL eventmod-match when foo has not been loaded. If a later write tries to remove a specific matc...

UBUNTU-CVE-2026-74645

In the Linux kernel, the following vulnerability has been resolved: mm/damon/lrusort: error out for 10000 activemembp damosquotascore can trigger division by zero if the target value is zero. DAMONLRUSORT lets users set the target value for the hot memory scheme via activemembp parameter. It avoi...

UBUNTU-CVE-2026-74609

In the Linux kernel, the following vulnerability has been resolved: tipc: read le-link under the node lock in tipcnodelinkdown tipcnodelinkdown caches the link pointer before taking n-lock: struct tipclink l = le-link; / unlocked / if !l return; tipcnodewritelockn; if !tipclinkisestablishingl /...

UBUNTU-CVE-2026-74603

In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix board ID over-read The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlinkinfoversionfixedput treats it as a C string and may read beyond the...

UBUNTU-CVE-2026-74586

In the Linux kernel, the following vulnerability has been resolved: sctp: clear newtransport when removing a peer sctpprocessasconfparam stores a newly added peer transport in asoc-newtransport. After all parameters in the ASCONF chunk have been processed, sctpsfdoasconf uses this pointer to send...

UBUNTU-CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

UBUNTU-CVE-2026-74608

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifstryaddingchannels cifstryaddingchannels takes a temporary reference to an interface before dropping ifacelock. If cifssesaddchannel fails, it drops that reference and then increments...

UBUNTU-CVE-2026-74651

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in rtwgetwpaie rtwgetwpaie reads bytes at fixed offsets into a vendor-specific information element without checking that the element is long enough, causing an out-of-bounds read for a short...

UBUNTU-CVE-2026-74621

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix skbuff leak when the header checks reject a packet tcfcthandlefragments runs its header sanity checks before handing anything to the defragmentation engine: if family == NFPROTOIPV4 err =...

UBUNTU-CVE-2026-74685

In the Linux kernel, the following vulnerability has been resolved: hwmon: ltc4282 Clamp negative current limits When a negative value is passed to ltc4282writecurr, the signed long val is cast directly to u64: drivers/hwmon/ltc4282.c:ltc4282writecurr / need to pass it in millivolt / u32 in =...

UBUNTU-CVE-2026-74717

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fwtracer, return NULL on create error Tracer creation can fail by returning either NULL or ERRPTR. The return value is stored without a check on the device, and users treat ERRPTR and NULL the same way. This also causes...

UBUNTU-CVE-2026-74671

In the Linux kernel, the following vulnerability has been resolved: ima: fix out-of-bounds read in xattrverify The digest-length check in xattrverify mixes int and sizet: if xattrlen - sizeofxattrvalue-type - hashstart = iint-imahash-length sizeof yields sizet, so the usual arithmetic conversions...

UBUNTU-CVE-2026-74684

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...