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Red Hat Security Advisory

RHSA-2026:19875

kernel-rt security update

Released 2026-05-20 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 8 records

Priority CRITICAL 93KEV

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.1613 Published 2026-05-23 Fixed in 5.10.257, 5.15.208 +6 CWE-456
Priority HIGH 66

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from w…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.04299 Published 2026-05-15 Partial fix · 3.17, 4.5 +10 CWE-269
Priority MEDIUM 44

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propaga…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.01987 Published 2026-05-23 Fixed in 5.10.257, 5.15.208 +6 CWE-691
TI-2025-15949 CVE-2025-21999 · GHSA-vmv5-h8c6-426p

proc: fix UAF in proc_get_inode()

Priority LOW 36

In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in proc_get_inode() Fix race between rmmod and /proc/XXX's inode instantiation.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00233 Published 2025-04-03 Partial fix · 5.10.236, 5.15.180 +5 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: can: raw: fix ro->uniq use-after-free in raw_rcv() raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver deletion is d…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00165 Published 2026-04-23 Fixed in 5.10.258, 5.15.209 +7 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/umad: Reject negative data_len in ib_umad_write ib_umad_write computes data_len from user-controlled count and the MAD header sizes.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0018 Published 2026-03-18 Partial fix · 5.10.252, 5.15.202 +6 CWE-190
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix bsg_done() causing double free Kernel panic observed on system, [5353358.825191] BUG: unable to handle page fault for address: ff5f5e…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00216 Published 2026-03-04 Partial fix · 5.10.251, 5.15.201 +6 CWE-415
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so *after* dropping/zapping the e…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00191 Published 2026-04-01 Partial fix · 5.15.203, 6.1.168 +5