CVE-2026-31717

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate owner of durable handle on reconnect Currently, ksmbd does not verify if the user attempting to reconnect to a durable handle is the same user who originally opened the file. This allows any authenticated user to...

UBUNTU-CVE-2026-31708

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB read in smb2ioctlqueryinfo QUERYINFO path smb2ioctlqueryinfo has two response-copy branches: PASSTHRUFSCTL and the default QUERYINFO path. The QUERYINFO branch clamps qi.inputbufferlength to the server-report...

UBUNTU-CVE-2026-31710

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix dir separator in SMB1 UNIX mounts When calling cifsmountgettcon with SMB1 UNIX mounts, @cifssb-mntcifsflags needs to be read or updated only after calling resetcifsunixcaps, otherwise it might end up with missing...

CVE-2026-31689

In the Linux kernel, the following vulnerability has been resolved: EDAC/mc: Fix error path ordering in edacmcalloc When the mci-pvtinfo allocation in edacmcalloc fails, the error path will call putdevice which will end up calling the device's release function. However, the init ordering is wrong...

CVE-2026-31687

In the Linux kernel, the following vulnerability has been resolved: gpio: omap: do not register driver in probe Commit 11a78b794496 "ARM: OMAP: MPUIO wake updates" registers the omapmpuiodriver from omapmpuioinit, which is called from omapgpioprobe. However, it neither makes sense to register...

UBUNTU-CVE-2026-31689

In the Linux kernel, the following vulnerability has been resolved: EDAC/mc: Fix error path ordering in edacmcalloc When the mci-pvtinfo allocation in edacmcalloc fails, the error path will call putdevice which will end up calling the device's release function. However, the init ordering is wrong...

CVE-2026-31690

In the Linux kernel, the following vulnerability has been resolved: firmware: thead: Fix buffer overflow and use standard endian macros Addresses two issues in the TH1520 AON firmware protocol driver: 1. Fix a potential buffer overflow where the code used unsafe pointer arithmetic to access the...

CVE-2026-31686

In the Linux kernel, the following vulnerability has been resolved: mm/kasan: fix double free for kasan pXds kasanfreepxd assumes the page table is always struct page aligned. But that's not always the case for all architectures. E.g. In case of powerpc with 64K pagesize, PUD table of size 4096...

CVE-2026-31682

In the Linux kernel, the following vulnerability has been resolved: bridge: brndsend: linearize skb before parsing ND options brndsend parses neighbour discovery options from ns-opt and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header...

CVE-2026-31678

In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdevput to RCU release ovsnetdevtunneldestroy may run after NETDEVUNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe...

CVE-2026-31674

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trt: reject oversized addrnr in rtmt6check Reject rt match rules whose addrnr exceeds IP6TRTHOPS. rtmt6 expects addrnr to stay within the bounds of rtinfo-addrs. Validate addrnr during rule installation so malformed...

CVE-2026-31614

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix off-by-8 bounds check in checkwsleas The bounds check uses u8 ea + nlen + 1 + vlen as the end of the EA name and value, but eadata sits at offset sizeofstruct smb2filefulleainfo = 8 from ea, not at offset 0. The...

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...

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-2026-31633

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-2026-31656

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...

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-2026-31611

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-2026-31634

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...