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Red Hat Security Advisory

RHSA-2026:3277

kernel security update

Released 2026-02-25 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 10 records

Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: smb: client: let recv_done verify data_offset, data_length and remaining_data_length This is inspired by the related server fixes.

CVSS 3.1CRITICAL 9.4 Network No auth No interaction EPSS 0.00347 Published 2025-10-04 Partial fix · 6.1.191, 6.6.160 +3
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: Enforce that teql can only be used as root qdisc Design intent of teql is that it is only supposed to be used as root qdisc.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0019 Published 2026-02-04 Fixed in 5.10.249, 5.15.199 +5 CWE-416
TI-2025-26941 CVE-2025-40271 · GHSA-r37x-wmxh-7hvh

fs/proc: fix uaf in proc_readdir_de()

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix uaf in proc_readdir_de() Pde is erased from subdir rbtree through rb_erase(), but not set the node to EMPTY, which may result in uaf access…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00488 Published 2025-12-06 Partial fix · 5.4.302, 5.10.247 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix infinite recursive call of clip_push().

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00205 Published 2025-07-25 Partial fix · 5.4.296, 5.10.240 +6 CWE-674
Priority LOW 34

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid Fixes a crash when layout is null during this call stack: write_inode -> nfs4…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00712 Published 2025-12-24 Partial fix · 5.10.248, 5.15.198 +6
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: Squashfs: check return result of sb_min_blocksize Syzkaller reports an "UBSAN: shift-out-of-bounds in squashfs_bio_read" bug.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00225 Published 2025-07-25 Partial fix · 5.4.295, 5.10.239 +6 CWE-787
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(), the var…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00528 Published 2025-12-30 Partial fix · 5.4.278, 5.10.153 +3
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in ext4_orphan_cleanup I caught a issue as follows: ================================================================== BUG: KAS…

CVSS 3.1HIGH 7.8 Local No auth User interaction EPSS 0.00209 Published 2025-12-09 Partial fix · 4.19.270, 5.4.229 +5
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: usb: core: config: Prevent OOB read in SS endpoint companion parsing usb_parse_ss_endpoint_companion() checks descriptor type before length, enabling a…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00179 Published 2025-09-11 Partial fix · 5.10.241, 5.15.190 +6 CWE-125
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix slab-use-after-free in decode_session6 When ipv6_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modifi…

CVSS — EPSS 0.00257 Published 2025-12-09 Partial fix · 4.14.324, 4.19.293 +6