CVE-2026-74599

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

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...

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-2026-74671

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-2026-74620

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

UBUNTU-CVE-2026-74654

In the Linux kernel, the following vulnerability has been resolved: serial: 8250dma: Clear stale RX state on shutdown serial8250releasedma terminates RX DMA and releases the channel, but leaves rxrunning set. If the port is closed while an RX transfer is active, the stale state remains while rxch...

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...

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...

CVE-2026-74636

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix race between updateeventfields and, eventdefinefields The following sequence may leads race between eventdefinefields and updateeventfields: CPU0 loads module A CPU1 loads module B ===============================...

CVE-2026-74722

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

CVE-2026-74585

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound the DROM dual link port number before indexing sw-ports tbdromparseentryport validates the device-supplied header-index against sw-config.maxportnumber before indexing sw-ports, but the sibling field...

CVE-2026-74694

In the Linux kernel, the following vulnerability has been resolved: net/ncsi: fix heap OOB read in NCSICMDSENDCMD payload length ncsisendcmdnl takes the number of bytes to copy from the attacker-controlled ncsipkthdr.length field of the in-band packet header, while the source buffer is the...

CVE-2026-74659

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mrp: fix uninitialised bytes on the wire brmrpalloctestskb builds MRP test frames on an skb from devallocskb, which does not clear the linear data area. On the MRA ring-role branch the sub-option TLV header is append...

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-2026-74672

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: acquire initmm lock on huge vmap to avoid ptdump UAF Patch series "mm: fix UAF caused by race between ptdump and vmap pgtable freeing", v6. Kernel page table walkers fall into two broad categories - those ranges where...

UBUNTU-CVE-2026-74659

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mrp: fix uninitialised bytes on the wire brmrpalloctestskb builds MRP test frames on an skb from devallocskb, which does not clear the linear data area. On the MRA ring-role branch the sub-option TLV header is append...

UBUNTU-CVE-2026-74677

In the Linux kernel, the following vulnerability has been resolved: net: usb: ipheth: fix carrierwork UAF on disconnect iphethsndbulkcallback re-arms the carrier-check work on any non-zero URB status: else scheduledelayedwork&dev-carrierwork, 0; Nothing ties that to the interface being up, so the...

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...

CVE-2026-74664

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reallocate update replies for mismatched IDs ovsflowcmdnew preallocates the optional reply skb before it takes ovsmutex and before it knows which existing flow will be updated. That is normally fine because the...

UBUNTU-CVE-2026-74680

In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: properly kill rcvurb on error in cxacrucm If cxacrucm encounters an error while submitting or waiting for sndurb, it aborts and returns the error without killing the already submitted rcvurb. This leaves the...