UBUNTU-CVE-2026-98525

In the Linux kernel, the following vulnerability has been resolved: mctp: route: iterate socket tag list in mctplookupprealloctag When a socket transmits a packet with MCTPTAGPREALLOC set, mctplookupprealloctag iterates over the per-netns &mns-keys list and matches netid, reqtag, peeraddr, and...

UBUNTU-CVE-2026-98534

In the Linux kernel, the following vulnerability has been resolved: ipe: fix use-after-free when auditing a newly loaded policy newpolicy audits the policy after ipenewpolicyfsnode publishes it and drops the new directory's inode lock. A concurrent delete can free the policy while...

UBUNTU-CVE-2026-98523

In the Linux kernel, the following vulnerability has been resolved: drm/client: fix restore of partially initialized client I got a null-ptr-deref report when closing a DRM file descriptor: WARNING: drivers/gpu/drm/drmatomic.c:2031 at drmatomichelpersetconfig+0x18e/0x1b0 drm Call Trace:...

UBUNTU-CVE-2026-98528

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: fix kernel stack leak to user-space in error path If we fail to acquire the GPIO chip guard in gpiodesctolineinfo, we return immediately before zeroing the info struct we'll end up passing to the user-space later in...

UBUNTU-CVE-2026-98784

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: fix firmware leak on teardown The firmware requested in gfxv60initmicrocode is not released when the GFX block is torn down, leaking the firmware resources. Add gfxv60freemicrocode and call it from gfxv60swfini t...

UBUNTU-CVE-2026-98868

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: reject a kset that overruns its segment cachereplay, the writeback worker and the GC worker read a kset of getksetonmediasize bytes and advance the position by it. A forged keynum makes that size exceed the segment's...

UBUNTU-CVE-2026-98851

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftflowoffload: drop flowtable reference on init error path nftflowoffloadinit bumps the flowtable use count with nftuseinc before calling nfctnetnsget. When the latter fails, the error is returned as-is and the...

UBUNTU-CVE-2026-98847

In the Linux kernel, the following vulnerability has been resolved: rtc: spear: initialize IRQ state before requesting alarm IRQ devmrequestirq enables the interrupt before it returns, so the handler may run while probe is still initializing the device. Initialize the MMIO address and spinlock...

UBUNTU-CVE-2026-98846

In the Linux kernel, the following vulnerability has been resolved: sctp: check RCVSHUTDOWN after the sendmsg connect wait sctpwaitforconnect drops the socket lock while it sleeps. An out-of-the-blue ABORT can then be processed from the socket backlog and unlink the association. If a concurrent...

UBUNTU-CVE-2026-98842

In the Linux kernel, the following vulnerability has been resolved: module: fix lost error code from codetagloadmodule If codetagloadmodule fails, err is not set to reflect the failure and loadmodule returns 0 after the module has been torn down. Also, if the module is a livepatch, mod-klpinfo...

UBUNTU-CVE-2026-98844

In the Linux kernel, the following vulnerability has been resolved: netfs: clear post-EOF pagecache when extending a file via write Fix netfs to erase the contents of a hole created after the EOF by an ordinary write if dirty data has been previously left there by writes through an mmapped region...

UBUNTU-CVE-2026-98843

In the Linux kernel, the following vulnerability has been resolved: netfs: zero gaps in read-gaps folio to avoid writing back stale data netfsreadgaps leaves gaps around a streaming write's dirty region unread on the server side, so a short/EOF response there left stale folio content that later g...

UBUNTU-CVE-2026-98849

In the Linux kernel, the following vulnerability has been resolved: pfcp: fix socket lifetime on netdevice registration failure pfcpnewlink creates the UDP socket before registernetdevice. If registration fails after pfcpdevinit succeeds, the core calls pfcpdevuninit, which releases the socket an...

UBUNTU-CVE-2026-98848

In the Linux kernel, the following vulnerability has been resolved: rtc: ac100: Assign .num before accessing .hws Commit f316cdff8d67 "clk: Annotate struct clkhwonecelldata with countedby" annotated the hws member of 'struct clkhwonecelldata' with countedby, which informs the bounds sanitizer...

UBUNTU-CVE-2026-98856

In the Linux kernel, the following vulnerability has been resolved: kprobes: Skip disarmed probes when checking optkprobe overlap On x86, an optkprobe at A replaces five bytes with a jump. If a disabled probe B is at A+2, getoptimizedkprobe stops at B when arming a new probe C at A+4. It leaves A...

UBUNTU-CVE-2026-98863

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Re-pend GETNESTEDSTATEPAGES if getting said pages fails Re-pend GETNESTEDSTATEPAGES before exiting to userspace if getting the nested pages fails in the KVMRUN path. If userspace re-runs the vCPU, and vmcs02 holds valid...

UBUNTU-CVE-2026-98862

In the Linux kernel, the following vulnerability has been resolved: audit: fix exe mark UAF in killrules killrules removes mixed AUDITDIR and AUDITEXE rules when an audit tree is pruned. It drops entry-rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been...

UBUNTU-CVE-2026-98861

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...

UBUNTU-CVE-2026-98853

In the Linux kernel, the following vulnerability has been resolved: net: gso: limit recursive IP-in-IP segmentation IP-in-IP GSO can re-enter inetgsosegment or ipv6gsosegment for each nested IP header. encaplevel tracks header bytes, not callback depth, so a deep chain can exhaust the kernel stac...

UBUNTU-CVE-2026-98852

In the Linux kernel, the following vulnerability has been resolved: net: extend IPv6 exthdr detection of tunneled packets Commit c4336a07eb6b "net: correctly handle tunneled traffic on IPV6CSUM GSO fallback" split skbgsohasextensionhdr into mutually exclusive branches on skb-encapsulation. This d...