Red Hat Security Advisory

RHSA-2026:53989

kernel security update

Released 2026-08-12 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.206.1.el8_6, kernel-4.18.0-372.206.1.el8_6, kernel-abi-stablelists-4.18.0-372.206.1.el8_6 +14
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.206.1.el8_6, kernel-4.18.0-372.206.1.el8_6, kernel-abi-stablelists-4.18.0-372.206.1.el8_6 +14

Fixes 4 records

TI-2026-31292 CVE-2026-43112 · GHSA-24h4-22f3-65qc

fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath When cifs_sanitize_prepath is called with an empty string or a string containing only del…

CVSS 3.1HIGH 8.8 Network No auth User interaction EPSS 0.00352 Published 2026-05-06 Partial fix · 5.15.209, 6.1.175 +5 CWE-125

TI-2026-38146 CVE-2026-53059 · GHSA-vj88-ppr4-hj46

dm log: fix out-of-bounds write due to region_count overflow

LOW 33

In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00141 Published 2026-06-24 Partial fix · 5.10.258, 5.15.209 +6 CWE-787

TI-2026-24343 CVE-2026-31787 · GHSA-3c28-g28m-gm93

xen/privcmd: fix double free via VMA splitting

LOW 33

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting privcmd_vm_ops defines .close (privcmd_close), but neither .may_split nor .open.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00183 Published 2026-04-30 Partial fix · 5.10.254, 5.15.204 +6 CWE-415

TI-2026-31342 CVE-2026-43163 · GHSA-4hfr-m4m2-94ff

md/bitmap: fix GPF in write_page caused by resize race

LOW 20

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b…

CVSS 3.1MEDIUM 4.7 Local Low privileges No interaction EPSS 0.00091 Published 2026-05-06 Partial fix · 5.10.252, 5.15.202 +6 CWE-362