UBUNTU-CVE-2026-74338

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject sleepable BPFLSMCGROUP programs at load time The cgroup shim runs under rcureadlockdontmigrate, so we should not attach any sleepable BPF programs there. Add support to the verifier to explicitly reject attempts to lo...

CVE-2026-74364

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject exclusive maps as inner maps in map-in-map An exclusive map created with exclproghash is bound to a single program by hash: checkmapprogcompatibility refuses to load any program whose digest does not match...

CVE-2026-74360

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject exclusive maps for bpfmapelem iterators Exclusive maps aka exclproghash are meant to be reachable only from the single program whose hash matches. This is enforced by checkmapprogcompatibility when the map is referenc...

CVE-2026-74400

In the Linux kernel, the following vulnerability has been resolved: bpf: fix crash in bpfset|removedentryxattr for negative dentries bpfsetdentryxattr and bpfremovedentryxattr BPF kfuncs attempt to lock the inode of the supplied dentry without checking if it is NULL. If a negative dentry is passe...

CVE-2026-72427

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix effective prog array index with BPFFPREORDER replaceeffectiveprog and purgeeffectiveprogs located the slot in the effective array by walking the program hlist and counting entries linearly. That count does not match the...

UBUNTU-CVE-2026-72427

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix effective prog array index with BPFFPREORDER replaceeffectiveprog and purgeeffectiveprogs located the slot in the effective array by walking the program hlist and counting entries linearly. That count does not match the...

UBUNTU-CVE-2026-74364

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject exclusive maps as inner maps in map-in-map An exclusive map created with exclproghash is bound to a single program by hash: checkmapprogcompatibility refuses to load any program whose digest does not match...

UBUNTU-CVE-2026-74258

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard getuser acesss with accessok for uprobemulti data As reported by sashiko 1 we need to use accessok to check the user space data bounds before we use get-user to get it. 1...

CVE-2026-72428

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack slot index in nospec checks checkstackwritefixedoff computes the byte slot for a fixed-offset stack write as -off - 1, and records each written byte in slottype with slot - i % BPFREGSIZE. The Spectre v4 sanitizati...

CVE-2026-72423

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard conntrack opts error writes The conntrack lookup and allocation kfuncs take an opts pointer together with an optssz argument. The verifier checks only the memory range described by optssz, but the wrappers...

CVE-2026-72400

In the Linux kernel, the following vulnerability has been resolved: seg6: validate SRH length before reading fixed fields seg6validatesrh reads fixed SRH fields such as srh-type and srh-hdrlen before checking that the supplied length covers the fixed struct ipv6srhdr fields. The BPF SEG6 encap pa...

CVE-2026-74314

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel special fields on map value recycle Map update and delete paths currently call bpfobjfreefields when a value is being replaced or recycled. That makes field destruction depend on the context of the update/delete...

CVE-2026-72402

In the Linux kernel, the following vulnerability has been resolved: bpf: Mask pseudo pointer values in verifier logs printbpfinsn masks ldimm64 immediates for pointer-bearing pseudo sources when pointer leaks are not allowed, but the mask only covers BPFPSEUDOMAPFD and BPFPSEUDOMAPVALUE...

UBUNTU-CVE-2026-72428

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack slot index in nospec checks checkstackwritefixedoff computes the byte slot for a fixed-offset stack write as -off - 1, and records each written byte in slottype with slot - i % BPFREGSIZE. The Spectre v4 sanitizati...

CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74335

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-72352

In the Linux kernel, the following vulnerability has been resolved: HID: bpf: Fix hidbpfgetdata range check hidbpfgetdata returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx-allocatedsize. The current check adds rdwrbufsize and offset before...

UBUNTU-CVE-2026-74371

In the Linux kernel, the following vulnerability has been resolved: bpf: fix BPFPROGQUERY OOB write and cgroup backward compat BPFPROGQUERY writes back the 'query.revision' field unconditionally to userspace. If userspace passes a smaller 'bpfattr' structure e.g. 40 bytes, which was the layout...

UBUNTU-CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

UBUNTU-CVE-2026-72352

In the Linux kernel, the following vulnerability has been resolved: HID: bpf: Fix hidbpfgetdata range check hidbpfgetdata returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx-allocatedsize. The current check adds rdwrbufsize and offset before...