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Fencer Vulns
high 7.8

CVE-2025-37738 json

ext4: ignore xattrs past end

published 2025-05-01 18 mo ago modified 2026-10-15 24 d ago also EUVD-2025-13077

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

ext4: ignore xattrs past end

Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry.

This fixes the following KASAN reported issue:

================================================================== BUG: KASAN: slab-use-after-free in ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 Read of size 4 at addr ffff888012c120c4 by task repro/2065

CPU: 1 UID: 0 PID: 2065 Comm: repro Not tainted 6.13.0-rc2+ #11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x1fd/0x300 ? tcp_gro_dev_warn+0x260/0x260 ? _printk+0xc0/0x100 ? read_lock_is_recursive+0x10/0x10 ? irq_work_queue+0x72/0xf0 ? __virt_addr_valid+0x17b/0x4b0 print_address_description+0x78/0x390 print_report+0x107/0x1f0 ? __virt_addr_valid+0x17b/0x4b0 ? __virt_addr_valid+0x3ff/0x4b0 ? __phys_addr+0xb5/0x160 ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 kasan_report+0xcc/0x100 ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 ext4_xattr_inode_dec_ref_all+0xb8c/0xe90 ? ext4_xattr_delete_inode+0xd30/0xd30 ? __ext4_journal_ensure_credits+0x5f0/0x5f0 ? __ext4_journal_ensure_credits+0x2b/0x5f0 ? inode_update_timestamps+0x410/0x410 ext4_xattr_delete_inode+0xb64/0xd30 ? ext4_truncate+0xb70/0xdc0 ? ext4_expand_extra_isize_ea+0x1d20/0x1d20 ? __ext4_mark_inode_dirty+0x670/0x670 ? ext4_journal_check_start+0x16f/0x240 ? ext4_inode_is_fast_symlink+0x2f2/0x3a0 ext4_evict_inode+0xc8c/0xff0 ? ext4_inode_is_fast_symlink+0x3a0/0x3a0 ? do_raw_spin_unlock+0x53/0x8a0 ? ext4_inode_is_fast_symlink+0x3a0/0x3a0 evict+0x4ac/0x950 ? proc_nr_inodes+0x310/0x310 ? trace_ext4_drop_inode+0xa2/0x220 ? _raw_spin_unlock+0x1a/0x30 ? iput+0x4cb/0x7e0 do_unlinkat+0x495/0x7c0 ? try_break_deleg+0x120/0x120 ? 0xffffffff81000000 ? __check_object_size+0x15a/0x210 ? strncpy_from_user+0x13e/0x250 ? getname_flags+0x1dc/0x530 __x64_sys_unlinkat+0xc8/0xf0 do_syscall_64+0x65/0x110 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x434ffd Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 8 RSP: 002b:00007ffc50fa7b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007ffc50fa7e18 RCX: 0000000000434ffd RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 00007ffc50fa7be0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc50fa7e08 R14: 00000000004bbf30 R15: 0000000000000001 </TASK>

The buggy address belongs to the object at ffff888012c12000 which belongs to the cache filp of size 360 The buggy address is located 196 bytes inside of freed 360-byte region [ffff888012c12000, ffff888012c12168)

The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12c12 head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x40(head|node=0|zone=0) page_type: f5(slab) raw: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004 raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000 head: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004 head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000 head: 0000000000000001 ffffea00004b0481 ffffffffffffffff 0000000000000000 head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected

Memory state around the buggy address: ffff888012c11f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888012c12000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb > ffff888012c12080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888012c12100: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff888012c12180: fc fc fc fc fc fc fc fc fc ---truncated---

Patch / fix

  • Linux Linux 5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15
  • linux Debian 12 6.1.135-1
  • linux Debian 14, Debian 13 6.12.25-1

debian advisories DEBIAN-CVE-2025-37738

  • linux Ubuntu 22.04 LTS 5.15.0-144.157
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1088.95
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1087.96
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1085.91
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-37738

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 8 4.18.0-553.62.1.el8_10
  • perf RHEL 8 4.18.0-553.62.1.el8_10
  • bpftool RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.62.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.62.1.el8_10

red hat advisories RHSA-2025:13099RHSA-2025:13061RHSA-2025:12623RHSA-2025:12238RHSA-2025:11298RHSA-2025:11299

  • kernel-rt SLE Micro 5.5 5.14.21-150500.13.109.1
  • kernel-source-rt SLE Micro 5.5 5.14.21-150500.13.109.1
  • kernel-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
  • kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
  • kernel-64kb SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS, SLE High Performance Computing 15 SP4-ESPOS 5.14.21-150400.24.179.1
  • kernel-syms SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
  • kernel-source SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
  • kernel-default SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +7 more 5.14.21-150400.24.179.1

suse advisories SUSE-SU-2025:3761-1SUSE-SU-2025:3716-1SUSE-SU-2025:03628-1SUSE-SU-2025:03615-1SUSE-SU-2025:02923-1SUSE-SU-2025:02538-1

  • kernel AlmaLinux 8 4.18.0-553.62.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.62.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.62.1.el8_10

almalinux advisories ALSA-2025:11298ALSA-2025:11299ALSA-2025:9302

  • kernel Rocky Linux 9 5.14.0-570.23.1.el9_6
  • kernel Rocky Linux 10 6.12.0-55.18.1.el10_0
  • kernel-rt Rocky Linux 8 4.18.0-553.62.1.rt7.403.el8_10
  • kernel Rocky Linux 8 4.18.0-553.62.1.el8_10

rocky linux advisories RLSA-2025:9302RLSA-2025:9348RLSA-2025:11299RLSA-2025:11298

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-37738 updated cvss 7.1

kernel: ext4: ignore xattrs past end

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.77.1.el9_4
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.23.1.el9_6, perf 5.14.0-570.23.1.el9_6, rtla 5.14.0-570.23.1.el9_6, python3-perf 5.14.0-570.23.1.el9_6, kernel-devel-matched 5.14.0-570.23.1.el9_6, kernel-64k-devel-matched 5.14.0-570.23.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.18.1.el10_0, perf 6.12.0-55.18.1.el10_0, rtla 6.12.0-55.18.1.el10_0, python3-perf 6.12.0-55.18.1.el10_0, kernel-devel-matched 6.12.0-55.18.1.el10_0, kernel-64k-devel-matched 6.12.0-55.18.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.138.1.el9_0, kernel-devel-matched 5.14.0-70.138.1.el9_0, kernel-debug-devel-matched 5.14.0-70.138.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.138.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.138.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.138.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:10830
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.124.1.el9_2, rtla 5.14.0-284.124.1.el9_2, kernel-devel-matched 5.14.0-284.124.1.el9_2, kernel-64k-devel-matched 5.14.0-284.124.1.el9_2, kernel-debug-devel-matched 5.14.0-284.124.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.124.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:10671
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.77.1.el9_4, perf 5.14.0-427.77.1.el9_4, rtla 5.14.0-427.77.1.el9_4, kernel-devel-matched 5.14.0-427.77.1.el9_4, kernel-64k-devel-matched 5.14.0-427.77.1.el9_4, kernel-debug-devel-matched 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
show 29 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.62.1.el8_10, kernel 4.18.0-553.62.1.el8_10, bpftool 4.18.0-553.62.1.el8_10, kernel-core 4.18.0-553.62.1.el8_10, kernel-tools 4.18.0-553.62.1.el8_10, python3-perf 4.18.0-553.62.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:11298
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.23.1.el9_6, kernel-64k 5.14.0-570.23.1.el9_6, kernel-core 5.14.0-570.23.1.el9_6, kernel-tools 5.14.0-570.23.1.el9_6, kernel-modules 5.14.0-570.23.1.el9_6, kernel-64k-core 5.14.0-570.23.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.18.1.el10_0, kernel-64k 6.12.0-55.18.1.el10_0, kernel-core 6.12.0-55.18.1.el10_0, kernel-tools 6.12.0-55.18.1.el10_0, kernel-modules 6.12.0-55.18.1.el10_0, kernel-64k-core 6.12.0-55.18.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.162.1.el8_2, kernel 4.18.0-193.162.1.el8_2, bpftool 4.18.0-193.162.1.el8_2, kernel-core 4.18.0-193.162.1.el8_2, kernel-tools 4.18.0-193.162.1.el8_2, python3-perf 4.18.0-193.162.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:12623
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.165.1.el8_4, kernel 4.18.0-305.165.1.el8_4, bpftool 4.18.0-305.165.1.el8_4, kernel-core 4.18.0-305.165.1.el8_4, kernel-tools 4.18.0-305.165.1.el8_4, python3-perf 4.18.0-305.165.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:12238
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.155.1.el8_6, kernel 4.18.0-372.155.1.el8_6, bpftool 4.18.0-372.155.1.el8_6, kernel-core 4.18.0-372.155.1.el8_6, kernel-tools 4.18.0-372.155.1.el8_6, python3-perf 4.18.0-372.155.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.155.1.el8_6, kernel 4.18.0-372.155.1.el8_6, bpftool 4.18.0-372.155.1.el8_6, kernel-core 4.18.0-372.155.1.el8_6, kernel-tools 4.18.0-372.155.1.el8_6, python3-perf 4.18.0-372.155.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:13099
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.138.1.el9_0, bpftool 5.14.0-70.138.1.el9_0, kernel-core 5.14.0-70.138.1.el9_0, kernel-tools 5.14.0-70.138.1.el9_0, python3-perf 5.14.0-70.138.1.el9_0, kernel-modules 5.14.0-70.138.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:10830
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.124.1.el9_2, kernel 5.14.0-284.124.1.el9_2, kernel-64k 5.14.0-284.124.1.el9_2, kernel-core 5.14.0-284.124.1.el9_2, kernel-tools 5.14.0-284.124.1.el9_2, python3-perf 5.14.0-284.124.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:10671
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.77.1.el9_4, kernel 5.14.0-427.77.1.el9_4, kernel-64k 5.14.0-427.77.1.el9_4, kernel-core 5.14.0-427.77.1.el9_4, kernel-tools 5.14.0-427.77.1.el9_4, python3-perf 5.14.0-427.77.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.165.1.el8_4, kernel 4.18.0-305.165.1.el8_4, bpftool 4.18.0-305.165.1.el8_4, kernel-core 4.18.0-305.165.1.el8_4, kernel-tools 4.18.0-305.165.1.el8_4, python3-perf 4.18.0-305.165.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:12238
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.155.1.el8_6, kernel 4.18.0-372.155.1.el8_6, bpftool 4.18.0-372.155.1.el8_6, kernel-core 4.18.0-372.155.1.el8_6, kernel-tools 4.18.0-372.155.1.el8_6, python3-perf 4.18.0-372.155.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:13099
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.23.1.el9_6
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.18.1.el10_0
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.62.1.el8_10
    fixed: vendor fix RHSA-2025:11298
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, +4 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-kvm 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-kvm 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-core 5.14.0-70.138.1.rt21.210.el9_0, +4 more
    fixed: vendor fix RHSA-2025:10829
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.23.1.el9_6, kernel-rt-64k 5.14.0-570.23.1.el9_6, kernel-rt-core 5.14.0-570.23.1.el9_6, kernel-rt-modules 5.14.0-570.23.1.el9_6, kernel-rt-64k-core 5.14.0-570.23.1.el9_6, kernel-rt-debug-core 5.14.0-570.23.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.18.1.el10_0, kernel-rt-64k 6.12.0-55.18.1.el10_0, kernel-rt-core 6.12.0-55.18.1.el10_0, kernel-rt-modules 6.12.0-55.18.1.el10_0, kernel-rt-64k-core 6.12.0-55.18.1.el10_0, kernel-rt-debug-core 6.12.0-55.18.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules-extra 5.14.0-70.138.1.rt21.210.el9_0, +2 more
    fixed: vendor fix RHSA-2025:10829
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-modules 5.14.0-284.124.1.rt14.409.el9_2, +4 more
    fixed: vendor fix RHSA-2025:10675
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, kernel-rt-modules-core 5.14.0-427.77.1.el9_4, kernel-rt-debug-modules 5.14.0-427.77.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.23.1.el9_6, kernel-rt-kvm 5.14.0-570.23.1.el9_6, kernel-rt-core 5.14.0-570.23.1.el9_6, kernel-rt-modules 5.14.0-570.23.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.23.1.el9_6, kernel-rt-debug-core 5.14.0-570.23.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.18.1.el10_0, kernel-rt-kvm 6.12.0-55.18.1.el10_0, kernel-rt-core 6.12.0-55.18.1.el10_0, kernel-rt-modules 6.12.0-55.18.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.18.1.el10_0, kernel-rt-debug-core 6.12.0-55.18.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-kvm 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-kvm 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-core 5.14.0-284.124.1.rt14.409.el9_2, +6 more
    fixed: vendor fix RHSA-2025:10675
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-kvm 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules-extra 4.18.0-553.62.1.rt7.403.el8_10, +2 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
24 d ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.