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Red Hat Security Advisory

RHSA-2026:27708

kernel security, bug fix, and enhancement update

Released 2026-06-22 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 13 records

Priority HIGH 69

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key l…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00639 Published 2026-06-16 Fixed in 5.10.260, 5.15.211 +9 CWE-190
Priority HIGH 69

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upca…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00413 Published 2026-06-01 Fixed in 5.10.258, 5.15.209 +6 CWE-20
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix workqueue list corruption by removing work_list The commit e1168f0 ("RDMA/iwcm: Simplify cm_event_handler()") changed the work submission…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00529 Published 2026-05-27 Fixed in 6.12.75, 6.18.14 +2 CWE-1341
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to n…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00303 Published 2026-05-28 Partial fix · 6.1.176, 6.6.140 +4 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs to leaf blocks xfs/592 and xfs/794 both trip this assertion in the leaf block freemap adjustment code af…

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00469 Published 2026-05-06 Partial fix · 5.10.252, 5.15.202 +6 CWE-664
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use safe list iteration in radar detect work The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00203 Published 2026-05-28 Fixed in 6.12.88, 6.18.30 +2 CWE-416
Priority LOW 38

In the Linux kernel, the following vulnerability has been resolved: libceph: reset sparse-read state in osd_fault() When a fault occurs, the connection is abandoned, reestablished, and any pending operations are retried.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00248 Published 2026-02-14 Fixed in 6.6.121, 6.12.66 +2 CWE-667
Priority LOW 36

In the Linux kernel, the following vulnerability has been resolved: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

CVSS 3.1HIGH 8.1 Network No auth No interaction EPSS 0.0042 Published 2025-11-12 Partial fix · 6.1.187, 6.6.156 +3
TI-2026-34044 CVE-2026-46323 · GHSA-hf4r-hm8m-w52j

net: gro: don't merge zcopy skbs

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00137 Published 2026-06-09 Partial fix · 6.1.176, 6.6.142 +4 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: mm/page_alloc: clear page->private in free_pages_prepare() Several subsystems (slub, shmem, ttm, etc.) use page->private but don't clear it before freei…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00172 Published 2026-05-08 Partial fix · 6.1.176, 6.6.143 +4 CWE-457
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can jus…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00101 Published 2026-05-06 Partial fix · 6.1.176, 6.6.143 +4 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in __pnet_find_base_ndev().

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0015 Published 2025-10-28 Partial fix · 6.1.187, 6.6.156 +3