CVE-2026-31608

In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in smbdirectfreesendmsg after smbdirectflushsendlist smbdirectflushsendlist already calls smbdirectfreesendmsg, so we should not call it again after postsendmsg moved it to the batch list...

CVE-2026-31611

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode. If sidunixNFSmode is the prefix S-1-5-88-3 with numsubauth = 2 then...

CVE-2026-31633

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgkverifyresponse In rxgkverifyresponse, there's a potential integer overflow due to rounding up tokenlen before checking it, thereby allowing the length check to be bypassed. Fix this by checking...

CVE-2026-31670

In the Linux kernel, the following vulnerability has been resolved: net: rfkill: prevent unlimited numbers of rfkill events from being created Userspace can create an unlimited number of rfkill events if the system is so configured, while not consuming them from the rfkill file descriptor, causin...

CVE-2026-31589

In the Linux kernel, the following vulnerability has been resolved: mm: call -freefolio directly in foliounmapinvalidate We can only call filemapfreefolio if we have a reference to or hold a lock on the mapping. Otherwise, we've already removed the folio from the mapping so it no longer pins the...

CVE-2026-31634

In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix reference count leak in rxrpcserverkeyring This patch fixes a reference count leak in rxrpcserverkeyring by checking if rx-securities is already set...

CVE-2026-31570

In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgwcsumcrc8rel cgwcsumcrc8rel correctly computes bounds-safe indices via calcidx: int from = calcidxcrc8-fromidx, cf-len; int to = calcidxcrc8-toidx, cf-len; int res = calcidxcrc8-resultidx, cf-len...

CVE-2026-31656

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: fix refcount underflow in intelengineparkheartbeat A use-after-free / refcount underflow is possible when the heartbeat worker and intelengineparkheartbeat race to release the same engine-heartbeat.systole request. T...

UBUNTU-CVE-2026-31594

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown epfntbepcdestroy duplicates the teardown that the caller is supposed to perform later. This leads to an oops when .allowlink fails or when .droplink is performed. Th...

CVE-2026-31663

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresume calls devput immediately on re-entry before the skb reaches transportfinish. The skb-dev pointer is then used inside NFHOOK and i...

CVE-2026-31654

In the Linux kernel, the following vulnerability has been resolved: mm/vma: fix memory leak in mmapregion commit 605f6586ecf7 "mm/vma: do not leak memory when .mmapprepare swaps the file" handled the success path by skipping getfile via filedoesntneedget, but missed the error path. When /dev/zero...

CVE-2026-31573

In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: Fix kernel panic due to initconst misuse Fix a kernel panic when probing the driver as a module: Unable to handle kernel paging request at virtual address ffffd9c18eb05000 offindmatchingnodeandmatch+0x5c/0x1a0...

CVE-2026-31671

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

CVE-2026-31657

In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by reference batadvblaaddclaim can replace claim-backbonegw and drop the old gateway's last reference while readers still follow the pointer. The netlink claim dump path dereferences...

CVE-2026-31599

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix NULL pointer dereference in vidtvchannelpmtmatchsections syzbot reported a general protection fault in vidtvpsidescassign 1. vidtvpsipmtstreaminit can return NULL on memory allocation failure, but...

CVE-2026-31575

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: fix hugetlb fault mutex hash calculation In mfillatomichugetlb, linearpageindex is used to calculate the page index for hugetlbfaultmutexhash. However, linearpageindex returns the index in PAGESIZE units, while...

UBUNTU-CVE-2026-31572

In the Linux kernel, the following vulnerability has been resolved: i2c: designware: amdisp: Fix resume-probe race condition issue Identified resume-probe race condition in kernel v7.0 with the commit 38fa29b01a6a "i2c: designware: Combine the init functions",but this issue existed from the...

UBUNTU-CVE-2026-31555

In the Linux kernel, the following vulnerability has been resolved: futex: Clear stale exiting pointer in futexlockpi retry path Fuzzying/stressing futexes triggered: WARNING: kernel/futex/core.c:825 at waitforownerexiting+0x7a/0x80, CPU11: futexlockpis/524 When futexlockpiatomic sees the owner i...

UBUNTU-CVE-2026-31616

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fphonet: fix skb frags overflow in pnrxcomplete A broken/bored/mean USB host can overflow the skbsharedinfo-frags array on a Linux gadget exposing a Phonet function by sending an unbounded sequence of full-page OUT...

UBUNTU-CVE-2026-31641

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix RxGK token loading to check bounds rxrpcpreparsexdryfsrxgk reads the raw key length and ticket length from the XDR token as u32 values and passes each through roundupx, 4 before using the rounded value for validation a...