CVE-2026-64459 tcp: restore RCU grace period in tcp_ao_destroy_sock

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

CVE-2026-64456

CVE-2026-64456 affects the Linux kernel virtio-rng driver. A malicious or buggy virtio-rng backend can over-report used.len to trap memcpy past the inline data buffer, reading adjacent slab memory. This enables a potential cross-boundary data leak of guest-kernel heap contents via /dev/hwrng and ...

CVE-2026-64456

In the Linux kernel, the following vulnerability has been resolved: hwrng: virtio: clamp device-reported used.len at copydata randomrecvdone stores the device-reported used.len directly into vi-dataavail. copydata then indexes vi-data using vi-dataidx advanced by previous copydata calls and issue...

EUVD-2026-48794

In the Linux kernel, the following vulnerability has been resolved: tipc: fix out-of-bounds read in broadcast Gap ACK blocks A broadcast PROTOCOL/STATEMSG can carry a Gap ACK blocks record in its data area. tipcgetgapackblks only verifies that the record's len field is self-consistent with its...

CVE-2026-64449

CVE-2026-64449 relates to the Linux kernel staging/vme_user code. The vulnerability arises because the SLAVE-path helpers buffer_to_user() and buffer_from_user() copy count bytes using an unsafe offset (*ppos) into a fixed-size kern_buf (128 KiB), without bounding *ppos + count against size_buf. ...

CVE-2026-64424

CVE-2026-64424 is a use-after-free in the Linux kernel's netpoll subsystem on the shutdown path. When __netpoll_cleanup() runs, it schedules an RCU callback that calls kfree(npinfo), but the TX worker (queue_process) is only cancelled via cancel_delayed_work(), which does not guarantee the worker...

CVE-2026-64424 netpoll: fix a use-after-free on shutdown path

In the Linux kernel, the following vulnerability has been resolved: netpoll: fix a use-after-free on shutdown path There is a use-after-free error on netpoll, which is clearly detected by KASAN. BUG: KASAN: slab-use-after-free in rawspinlockirqsave+0x3b/0x80 Read of size 1 at addr ... by task...

CVE-2026-64423

CVE-2026-64423 affects the Linux kernel IPv4 IGMP multicast handling. The root cause is that, when a device is destroyed, ip_mc_destroy_dev() decrements the multicast membership refcount but fails to unlink the membership from the device’s multicast hash table (mc_hash) before RCUs reclaim the ob...

CVE-2026-64419 mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64419 mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64419

CVE-2026-64419 is a Linux kernel vulnerability in the mm/shrinker subsystem. The function shrinker_debugfs_count_show() invokes a shrinker's ->count_objects() callback while holding an RCU read-side lock . The zswap shrinker's callback flushes memcg statistics via css_rstat_flush(), which may ...

EUVD-2026-48963

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64419

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64414 netfilter: handle unreadable frags

In the Linux kernel, the following vulnerability has been resolved: netfilter: handle unreadable frags sashiko reports: When an skb with unreadable fragments such as from devmem TCP, where skbfragsreadableskb returns false is processed by the u32 module, skbcopybits will safely return a negative...

CVE-2026-64395

Summary: CVE-2026-64395 in the Linux kernel ksmbd exposes information disclosure via FSCTL_DUPLICATE_EXTENTS_TO_FILE. The source file is passed directly to vfs_clone_file_range() / vfs_copy_file_range() without checking the SMB access mask, enabling a handle opened with attribute access to copy c...

CVE-2026-64395 ksmbd: require source read access for duplicate extents

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395 ksmbd: require source read access for duplicate extents

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

EUVD-2026-48939

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

EUVD-2026-48896

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...