UBUNTU-CVE-2026-74363

In the Linux kernel, the following vulnerability has been resolved: bpf: fix UAF by restoring RCU-delayed inode freeing in bpffs commit 4f375ade6aa9 "bpf: Avoid RCU context warning when unpinning htab with internal structs" moved inode cleanup from -freeinode into -destroyinode to avoid sleeping ...

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-2026-74354

In the Linux kernel, the following vulnerability has been resolved: bpf: Take mmaplock in zappages zapvmarange requires the owning mm's mmaplock to be held. Taking mmapreadlock under arena-lock would AB-BA against arenavmclose and arenamapmmap, both of which run with mmapwritelock held and then...

UBUNTU-CVE-2026-74268

In the Linux kernel, the following vulnerability has been resolved: tcp: clear sockops cb flags before force-closing a child socket A child socket inherits the listener's bpfsockopscbflags via skclonelock. If its setup fails in tcpv4synrecvsock / tcpv6synrecvsock, the child is freed through...

UBUNTU-CVE-2026-72426

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer spill metadata during half-slot cleanup cleanfuncstate cleans dead stack slots in 4-byte halves. When the high half of a STACKSPILL slot is dead and the low half remains live, cleanup converts the live low...

UBUNTU-CVE-2026-74344

In the Linux kernel, the following vulnerability has been resolved: bpf: Clear rb node linkage when freeing bpfrbroot bpfrbrootfree detaches the root by copying the current rbrootcached and then replacing the live root with RBROOTCACHED. It then walks the copied root and drops each object contain...

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...

CVE-2026-72110

In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe -bpfstorage before bailouts that access it Currently, copyprocess can bail out to freetask before p-bpfstorage has been initialized, with this call graph shown here for the !CONFIGMEMCG case: copyprocess...

CVE-2026-72111

In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register bounds before narrowing retval range in checkmemaccess When the BPF verifier processes a context load of an LSM hook return value, it calls markregs32range to narrow the register to the hook's valid range...

CVE-2026-72112

In the Linux kernel, the following vulnerability has been resolved: iouring/bpf-ops: reject re-registration of an already-bound ops ioinstallbpf only rejects a second registration on the ctx side ctx-bpfops and sets the per-map back-pointer ops-priv unconditionally. The structops link path never...

CVE-2026-72110

In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe -bpfstorage before bailouts that access it Currently, copyprocess can bail out to freetask before p-bpfstorage has been initialized, with this call graph shown here for the !CONFIGMEMCG case: copyprocess...

CVE-2026-72111

In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register bounds before narrowing retval range in checkmemaccess When the BPF verifier processes a context load of an LSM hook return value, it calls markregs32range to narrow the register to the hook's valid range...

UBUNTU-CVE-2026-72112

In the Linux kernel, the following vulnerability has been resolved: iouring/bpf-ops: reject re-registration of an already-bound ops ioinstallbpf only rejects a second registration on the ctx side ctx-bpfops and sets the per-map back-pointer ops-priv unconditionally. The structops link path never...

UBUNTU-CVE-2026-72110

In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe -bpfstorage before bailouts that access it Currently, copyprocess can bail out to freetask before p-bpfstorage has been initialized, with this call graph shown here for the !CONFIGMEMCG case: copyprocess...

CVE-2026-72112

In the Linux kernel, the following vulnerability has been resolved: iouring/bpf-ops: reject re-registration of an already-bound ops ioinstallbpf only rejects a second registration on the ctx side ctx-bpfops and sets the per-map back-pointer ops-priv unconditionally. The structops link path never...

UBUNTU-CVE-2026-72111

In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register bounds before narrowing retval range in checkmemaccess When the BPF verifier processes a context load of an LSM hook return value, it calls markregs32range to narrow the register to the hook's valid range...

CVE-2026-68462

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative const offsets for buffer pointers The verifier rejects variable offsets for PTRTOTPBUFFER and PTRTOBUF accesses, but it currently accepts a constant negative offset produced by pointer arithmetic. Commit...

CVE-2026-68462

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative const offsets for buffer pointers The verifier rejects variable offsets for PTRTOTPBUFFER and PTRTOBUF accesses, but it currently accepts a constant negative offset produced by pointer arithmetic. Commit...

UBUNTU-CVE-2026-68462

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative const offsets for buffer pointers The verifier rejects variable offsets for PTRTOTPBUFFER and PTRTOBUF accesses, but it currently accepts a constant negative offset produced by pointer arithmetic. Commit...

CVE-2026-74400 bpf: fix crash in bpf_[set|remove]_dentry_xattr for negative dentries

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...