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openSUSE Leap 15.5 Kernel Important Security Fixes 47 Issues 2026-0263-1

opensuse
Calendar Grey January 23, 2026
Dist Opensuse Esm H88
Critical update for openSUSE kernel addressing 392 vulnerabilities and 47 security fixes. Install now!
An update that solves 392 vulnerabilities, contains 16 features and has 47 security fixes can now be installed.

Description

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security

issues

The following security issues were fixed:

* CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault

(bsc#1254785).

* CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer

(bsc#1255576).

* CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at

different levels (bsc#1249871).

* CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler()

(bsc#1254751).

* CVE-2024-56590: Bluetooth: hci_core: Fix not checking skb length on

hci_acldata_packet (bsc#1235038).

* CVE-2025-39977: futex: Prevent use-after-free during requeue-PI

(bsc#1252046).

* CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place

encryption (bsc#1252678).

* CVE-2025-40139: net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward

(bsc#1253409).

* CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).

*...

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Topics%20covered

Topics Covered

security advisory security fix important kernel OpenSUSE use-after-free

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.5

zypper in -t patch SUSE-2026-263=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-263=1

Package List

* openSUSE Leap 15.5 (noarch)

* kernel-devel-rt-5.14.21-150500.13.118.1

* kernel-source-rt-5.14.21-150500.13.118.1

* openSUSE Leap 15.5 (x86_64)

* gfs2-kmp-rt-5.14.21-150500.13.118.1

* ocfs2-kmp-rt-debuginfo-5.14.21-150500.13.118.1

* kernel-rt-debugsource-5.14.21-150500.13.118.1

* kernel-rt-devel-5.14.21-150500.13.118.1

* kselftests-kmp-rt-5.14.21-150500.13.118.1

* kernel-rt_debug-vdso-5.14.21-150500.13.118.1

* kernel-rt_debug-devel-5.14.21-150500.13.118.1

* kernel-rt_debug-debugsource-5.14.21-150500.13.118.1

* kernel-rt-devel-debuginfo-5.14.21-150500.13.118.1

* reiserfs-kmp-rt-debuginfo-5.14.21-150500.13.118.1

* kernel-rt-optional-5.14.21-150500.13.118.1

* kernel-rt-vdso-5.14.21-150500.13.118.1

* kernel-rt-optional-debuginfo-5.14.21-150500.13.118.1

* kselftests-kmp-rt-debuginfo-5.14.21-150500.13.118.1

* kernel-syms-rt-5.14.21-150500.13.118.1

* kernel-rt_debug-vdso-debuginfo-5.14.21-150500.13.118.1

* kernel-rt-vdso-debuginfo-5.14.21-150500.13.118.1

* kernel-rt-livepatch-devel-5.14.21-150500.13.118.1

*...

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References

* bsc#1065729

* bsc#1193629

* bsc#1194869

* bsc#1196823

* bsc#1204957

* bsc#1205567

* bsc#1206451

* bsc#1206843

* bsc#1206889

* bsc#1207051

* bsc#1207088

* bsc#1207315

* bsc#1207611

* bsc#1207620

* bsc#1207622

* bsc#1207636

* bsc#1207644

* bsc#1207646

* bsc#1207652

* bsc#1207653

* bsc#1208570

* bsc#1208758

* bsc#1209799

* bsc#1209980

* bsc#1210644

* bsc#1210817

* bsc#1210943

* bsc#1211690

* bsc#1213025

* bsc#1213032

* bsc#1213093

* bsc#1213105

* bsc#1213110

* bsc#1213111

* bsc#1213653

* bsc#1213747

* bsc#1213867

* bsc#1214635

* bsc#1214940

* bsc#1214962

* bsc#1214986

* bsc#1214990

* bsc#1216062

* bsc#1224573

* bsc#1225832

* bsc#1226797

* bsc#1226846

* bsc#1228015

* bsc#1233640

* bsc#1235038

* bsc#1237563

* bsc#1249871

* bsc#1252046

* bsc#1252678

* bsc#1253409

* bsc#1254392

* bsc#1254520

* bsc#1254559

* bsc#1254562

* bsc#1254572

* bsc#1254578

* bsc#1254580

* bsc#1254592

* bsc#1254601

* bsc#1254608

* bsc#1254609

* bsc#1254614

* bsc#1254615

* bsc#1254617

* bsc#1254623

* bsc#1254625

* bsc#1254626

* bsc#1254631

* bsc#1254632

* bsc#1254634

* bsc#1254644

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0263-1
Release Date: 2026-01-22T21:15:03Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise Micro 5.5

Topics%20covered

Topics Covered

security advisory security fix important kernel OpenSUSE use-after-free

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