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high 7.8

CVE-2025-21727 json

padata: fix UAF in padata_reorder

published last yr. modified 26d ago also EUVD-2025-5214

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:

padata: fix UAF in padata_reorder

A bug was found when run ltp test:

BUG: KASAN: slab-use-after-free in padata_find_next+0x29/0x1a0 Read of size 4 at addr ffff88bbfe003524 by task kworker/u113:2/3039206

CPU: 0 PID: 3039206 Comm: kworker/u113:2 Kdump: loaded Not tainted 6.6.0+ Workqueue: pdecrypt_parallel padata_parallel_worker Call Trace: <TASK> dump_stack_lvl+0x32/0x50 print_address_description.constprop.0+0x6b/0x3d0 print_report+0xdd/0x2c0 kasan_report+0xa5/0xd0 padata_find_next+0x29/0x1a0 padata_reorder+0x131/0x220 padata_parallel_worker+0x3d/0xc0 process_one_work+0x2ec/0x5a0

If 'mdelay(10)' is added before calling 'padata_find_next' in the 'padata_reorder' function, this issue could be reproduced easily with ltp test (pcrypt_aead01).

This can be explained as bellow:

pcrypt_aead_encrypt ... padata_do_parallel refcount_inc(&pd->refcnt); // add refcnt ... padata_do_serial padata_reorder // pd while (1) { padata_find_next(pd, true); // using pd queue_work_on ... padata_serial_worker crypto_del_alg padata_put_pd_cnt // sub refcnt padata_free_shell padata_put_pd(ps->pd); // pd is freed // loop again, but pd is freed // call padata_find_next, UAF }

In the padata_reorder function, when it loops in 'while', if the alg is deleted, the refcnt may be decreased to 0 before entering 'padata_find_next', which leads to UAF.

As mentioned in [1], do_serial is supposed to be called with BHs disabled and always happen under RCU protection, to address this issue, add synchronize_rcu() in 'padata_free_shell' wait for all _do_serial calls to finish.

[1] https://lore.kernel.org/all/20221028160401.cccypv4euxikusiq@parnassus.localdomain/ [2] https://lore.kernel.org/linux-kernel/jfjz5d7zwbytztackem7ibzalm5lnxldi2eofeiczqmqs2m7o6@fq426cwnjtkm/

Patch / fix

  • Linux Linux 5.10.235, 5.15.179, 6.1.129, 6.6.76, 6.12.13, 6.13.2, 6.14
  • linux Debian 12 6.1.129-1
  • linux Debian 14, Debian 13 6.12.13-1

debian advisories DEBIAN-CVE-2025-21727

  • linux Ubuntu 22.04 LTS 5.15.0-140.150
  • linux Ubuntu 24.04 LTS 6.8.0-64.67
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1084.91
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1032.34
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1083.92
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1033.35
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1081.87
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1028.32

ubuntu advisories UBUNTU-CVE-2025-21727

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 9 5.14.0-611.5.1.el9_7
  • rv RHEL 9 5.14.0-611.5.1.el9_7
  • perf RHEL 9 5.14.0-611.5.1.el9_7
  • rtla RHEL 9 5.14.0-611.5.1.el9_7
  • libperf RHEL 9 5.14.0-611.5.1.el9_7
  • kernel-rt RHEL 9 5.14.0-611.5.1.el9_7
  • kernel-64k RHEL 9 5.14.0-611.5.1.el9_7
  • kernel-core RHEL 9 5.14.0-611.5.1.el9_7

red hat advisories RHSA-2025:20518RHSA-2025:20095RHSA-2025:15035RHSA-2025:14094RHSA-2025:14054RHSA-2025:13781

  • kernel-coco SLE Module for Confidential Computing Technical Preview 15 SP6 6.4.0-15061.21.coco15sp6.1
  • kernel-syms-coco SLE Module for Confidential Computing Technical Preview 15 SP6 6.4.0-15061.21.coco15sp6.1
  • kernel-coco_debug SLE Module for Confidential Computing Technical Preview 15 SP6 6.4.0-15061.21.coco15sp6.1
  • kernel-source-coco SLE Module for Confidential Computing Technical Preview 15 SP6 6.4.0-15061.21.coco15sp6.1
  • kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
  • kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1.21.6

suse advisories SUSE-SU-2025:01919-1SUSE-SU-2025:20192-1SUSE-SU-2025:20270-1SUSE-SU-2025:20190-1SUSE-SU-2025:20260-1SUSE-SU-2025:1180-1

  • kernel AlmaLinux 8 4.18.0-553.69.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.69.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.69.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.69.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.69.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.69.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.69.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.69.1.el8_10

almalinux advisories ALSA-2025:13589ALSA-2025:13590ALSA-2025:12662ALSA-2025:12746

  • kernel Rocky Linux 9 5.14.0-570.32.1.el9_6
  • kernel Rocky Linux 10 6.12.0-55.25.1.el10_0
  • kernel-rt Rocky Linux 8 4.18.0-553.69.1.rt7.410.el8_10
  • kernel Rocky Linux 8 4.18.0-553.69.1.el8_10

rocky linux advisories RLSA-2025:12746RLSA-2025:12662RLSA-2025:13590RLSA-2025:13589

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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-2025-21727 updated cvss 7.0

kernel: padata: fix UAF in padata_reorder

  • 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: no fix available
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-240.el8, kernel-debuginfo-common-aarch64 4.18.0-240.el8, kernel-debuginfo-common-ppc64le 4.18.0-240.el8
    fixed: vendor fix RHSA-2020:4431
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.81.1.el9_4
    fixed: vendor fix RHSA-2025:13135
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.5.1.el9_7, rv 5.14.0-570.32.1.el9_6, perf 5.14.0-611.5.1.el9_7, rtla 5.14.0-611.5.1.el9_7, perf 5.14.0-570.32.1.el9_6, rtla 5.14.0-570.32.1.el9_6, +20 more
    fixed: vendor fix RHSA-2025:12746
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.8.1.el10_1, rv 6.12.0-55.25.1.el10_0, perf 6.12.0-124.8.1.el10_1, perf 6.12.0-55.25.1.el10_0, rtla 6.12.0-124.8.1.el10_1, rtla 6.12.0-55.25.1.el10_0, +20 more
    fixed: vendor fix RHSA-2025:12662
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.142.1.el9_0, kernel-devel-matched 5.14.0-70.142.1.el9_0, kernel-debug-devel-matched 5.14.0-70.142.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.142.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.142.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.142.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:14054
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.130.1.el9_2, rtla 5.14.0-284.130.1.el9_2, kernel-devel-matched 5.14.0-284.130.1.el9_2, kernel-64k-devel-matched 5.14.0-284.130.1.el9_2, kernel-debug-devel-matched 5.14.0-284.130.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.130.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:13781
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.81.1.el9_4, perf 5.14.0-427.81.1.el9_4, rtla 5.14.0-427.81.1.el9_4, kernel-devel-matched 5.14.0-427.81.1.el9_4, kernel-64k-devel-matched 5.14.0-427.81.1.el9_4, kernel-debug-devel-matched 5.14.0-427.81.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:13135
show 28 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-240.el8, kernel 4.18.0-240.el8, bpftool 4.18.0-240.el8, kernel-core 4.18.0-240.el8, kernel-tools 4.18.0-240.el8, perf 4.18.0-553.69.1.el8_10, +36 more
    fixed: vendor fix RHSA-2025:13589
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.5.1.el9_7, kernel 5.14.0-570.32.1.el9_6, kernel-64k 5.14.0-611.5.1.el9_7, kernel-64k 5.14.0-570.32.1.el9_6, kernel-core 5.14.0-611.5.1.el9_7, kernel-core 5.14.0-570.32.1.el9_6, +60 more
    fixed: vendor fix RHSA-2025:12746
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.8.1.el10_1, kernel 6.12.0-55.25.1.el10_0, kernel-64k 6.12.0-124.8.1.el10_1, kernel-64k 6.12.0-55.25.1.el10_0, kernel-core 6.12.0-124.8.1.el10_1, kernel-core 6.12.0-55.25.1.el10_0, +61 more
    fixed: vendor fix RHSA-2025:12662
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:13776
  • 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 5.14.0-70.142.1.el9_0, bpftool 5.14.0-70.142.1.el9_0, kernel-core 5.14.0-70.142.1.el9_0, kernel-tools 5.14.0-70.142.1.el9_0, python3-perf 5.14.0-70.142.1.el9_0, kernel-modules 5.14.0-70.142.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:14054
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.130.1.el9_2, kernel 5.14.0-284.130.1.el9_2, kernel-64k 5.14.0-284.130.1.el9_2, kernel-core 5.14.0-284.130.1.el9_2, kernel-tools 5.14.0-284.130.1.el9_2, python3-perf 5.14.0-284.130.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:13781
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.81.1.el9_4, kernel 5.14.0-427.81.1.el9_4, kernel-64k 5.14.0-427.81.1.el9_4, kernel-core 5.14.0-427.81.1.el9_4, kernel-tools 5.14.0-427.81.1.el9_4, python3-perf 5.14.0-427.81.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:13135
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:13776
  • 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 5.14.0-611.5.1.el9_7, libperf 5.14.0-570.32.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-611.5.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-570.32.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-611.5.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.5.1.el9_7, +4 more
    fixed: vendor fix RHSA-2025:12746
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.8.1.el10_1, libperf 6.12.0-55.25.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-124.8.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-55.25.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-124.8.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-55.25.1.el10_0, +4 more
    fixed: vendor fix RHSA-2025:12662
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.69.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.69.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.69.1.el8_10
    fixed: vendor fix RHSA-2025:13589
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-kvm 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-core 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-modules 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-debug-kvm 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-debug-core 4.18.0-553.69.1.rt7.410.el8_10, +4 more
    fixed: vendor fix RHSA-2025:13590
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-kvm 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-core 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-modules 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-debug-kvm 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-debug-core 5.14.0-70.142.1.rt21.214.el9_0, +4 more
    fixed: vendor fix RHSA-2025:14094
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.5.1.el9_7, kernel-rt 5.14.0-570.32.1.el9_6, kernel-rt-64k 5.14.0-611.5.1.el9_7, kernel-rt-64k 5.14.0-570.32.1.el9_6, kernel-rt-core 5.14.0-611.5.1.el9_7, kernel-rt-core 5.14.0-570.32.1.el9_6, +34 more
    fixed: vendor fix RHSA-2025:12746
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.8.1.el10_1, kernel-rt 6.12.0-55.25.1.el10_0, kernel-rt-64k 6.12.0-124.8.1.el10_1, kernel-rt-64k 6.12.0-55.25.1.el10_0, kernel-rt-core 6.12.0-124.8.1.el10_1, kernel-rt-core 6.12.0-55.25.1.el10_0, +34 more
    fixed: vendor fix RHSA-2025:12662
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-core 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-modules 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-debug-core 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-debug-modules 5.14.0-70.142.1.rt21.214.el9_0, kernel-rt-modules-extra 5.14.0-70.142.1.rt21.214.el9_0, +2 more
    fixed: vendor fix RHSA-2025:14094
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-core 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-modules 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-debug-core 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-modules-core 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-debug-modules 5.14.0-284.130.1.rt14.415.el9_2, +4 more
    fixed: vendor fix RHSA-2025:13633
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.81.1.el9_4, kernel-rt-core 5.14.0-427.81.1.el9_4, kernel-rt-modules 5.14.0-427.81.1.el9_4, kernel-rt-debug-core 5.14.0-427.81.1.el9_4, kernel-rt-modules-core 5.14.0-427.81.1.el9_4, kernel-rt-debug-modules 5.14.0-427.81.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:13135
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.5.1.el9_7, kernel-rt 5.14.0-570.32.1.el9_6, kernel-rt-core 5.14.0-611.5.1.el9_7, kernel-rt-kvm 5.14.0-570.32.1.el9_6, kernel-rt-core 5.14.0-570.32.1.el9_6, kernel-rt-modules 5.14.0-611.5.1.el9_7, +16 more
    fixed: vendor fix RHSA-2025:12746
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-124.8.1.el10_1, kernel-rt 6.12.0-55.25.1.el10_0, kernel-rt-kvm 6.12.0-55.25.1.el10_0, kernel-rt-core 6.12.0-124.8.1.el10_1, kernel-rt-core 6.12.0-55.25.1.el10_0, kernel-rt-modules 6.12.0-124.8.1.el10_1, +16 more
    fixed: vendor fix RHSA-2025:12662
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-kvm 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-core 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-modules 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-debug-kvm 5.14.0-284.130.1.rt14.415.el9_2, kernel-rt-debug-core 5.14.0-284.130.1.rt14.415.el9_2, +6 more
    fixed: vendor fix RHSA-2025:13633
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.81.1.el9_4, kernel-rt-kvm 5.14.0-427.81.1.el9_4, kernel-rt-core 5.14.0-427.81.1.el9_4, kernel-rt-modules 5.14.0-427.81.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.81.1.el9_4, kernel-rt-debug-core 5.14.0-427.81.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:13135
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-core 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-modules 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-debug-core 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-debug-modules 4.18.0-553.69.1.rt7.410.el8_10, kernel-rt-modules-extra 4.18.0-553.69.1.rt7.410.el8_10, +2 more
    fixed: vendor fix RHSA-2025:13590
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more 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 ICSA-26-295-16 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-24-102-01 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

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
CISA ADP 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
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.