CVE-2024-57849

highpriority · track · 31EPSS 0.002 · 10 %ileDEEUFRRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (10th) EPSS

CVSS 7.8 · high

Is it mine?

88 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

In the Linux kernel, the following vulnerability has been resolved: s390/cpum_sf: Handle CPU hotplug remove during sampling CPU hotplug remove handling triggers the following function call sequence: CPUHP_AP_PERF_S390_SF_ONLINE --> s390_pmu_sf_offline_cpu() ... CPUHP_AP_PERF_ONLINE --> perf_event_exit_cpu() The s390 CPUMF sampling CPU hotplug handler invokes: s390_pmu_sf_offline_cpu() +--> cpusf_pmu_setup() +--> setup_pmc_cpu() +--> deallocate_buffers() This function de-allocates all sampling data buffers (SDBs) allocated for that CPU at event initialization. It also clears the PMU_F_RESERVED bit. The CPU is gone and can not be sampled. With the event still being active on the removed CPU, the CPU event hotplug support in kernel performance subsystem triggers the following function calls on the removed CPU: perf_event_exit_cpu() +--> perf_event_exit_cpu_context() +--> __perf_event_exit_context() +--> __perf_remove_from_context() +--> event_sched_out() +--> cpumsf_pmu_del() +--> cpumsf_pmu_stop() +--> hw_perf_event_update() to stop and remove the event. During removal of the event, the sampling device driver tries to read out the remaining samples from the sample data buffers (SDBs). But they have already been freed (and may have been re-assigned). This may lead to a use after free situation in which case the samples are most likely invalid. In the best case the memory has not been reassigned and still contains valid data. Remedy this situation and check if the CPU is still in reserved state (bit PMU_F_RESERVED set). In this case the SDBs have not been released an contain valid data. This is always the case when the event is removed (and no CPU hotplug off occured). If the PMU_F_RESERVED bit is not set, the SDB buffers are gone.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedkgraft-patch-4_12_14-122_237-default-0:16-2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 12 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkgraft-patch-4_12_14-122_237-default-0:16-2.1.s390x as component of SUSE Linux Enterprise Live Patching 12 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkgraft-patch-4_12_14-122_237-default-0:16-2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 12 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_147-default-0:18-150400.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_147-default-0:18-150400.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_147-default-0:18-150400.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_88-default-0:17-150500.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_88-default-0:17-150500.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_88-default-0:17-150500.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_144-default-0:19-150400.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_144-default-0:19-150400.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150400_24_144-default-0:19-150400.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP4suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_91-default-0:17-150500.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_91-default-0:17-150500.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedkernel-livepatch-5_14_21-150500_55_91-default-0:17-150500.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP5suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · SUSE Product Security

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimaryCWE-416US

affected products (88)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
IBM IBM QRadar SIEM <7.5.0 UP16 IF01< 7.5.0 UP16 IF01cert_bundDE
IBM IBM QRadar SIEM <7.6.0.3< 7.6.0.3cert_bundDE
IBM QRadar SIEM< 7.5.0 UP16 IF01cert_bundDE
IBM QRadar SIEM< 7.6.0.3cert_bundDE
Linux Linuxall versionsenisa_euvdEU
Linux Linux≤ 4.8enisa_euvdEU
Linux Linux< 5.10.231enisa_euvdEU
Linux Linux< 5.15.174enisa_euvdEU
Linux Linux< 5.4.287enisa_euvdEU
Linux Linux< 6.1.120enisa_euvdEU
Linux Linux< 6.12.5enisa_euvdEU
Linux Linux< 6.13enisa_euvdEU
Linux Linux< 6.6.66enisa_euvdEU
Linux Linuxe3d617fe6ac7… → 06a92f810df8…enisa_euvdEU
Linux Linuxe3d617fe6ac7… → 238e3af849df…enisa_euvdEU
Linux Linuxe3d617fe6ac7… → 99192c735ed4…enisa_euvdEU
Linux Linuxe3d617fe6ac7… → a0bd7dacbd51…enisa_euvdEU
Linux Linuxe3d617fe6ac7… → a69752f1e5de…enisa_euvdEU
Linux Linuxe3d617fe6ac7… → b5be6a0bb639…enisa_euvdEU

showing 20 of 88

advisories (8)

Vendor and ecosystem advisories describing this.

SUSE-SU-2026:0154-1Security update for the Linux Kernel (Live Patch 63 for SUSE Linux Enterprise 12 SP5)2026-01-19csaf · suse_csafDE
Security update for the Linux Kernel (Live Patch 63 for SUSE Linux Enterprise 12 SP5)
SUSE-SU-2026:0166-1Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP4)2026-01-19csaf · suse_csafDE
Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP4)
SUSE-SU-2026:0173-1Security update for the Linux Kernel (Live Patch 21 for SUSE Linux Enterprise 15 SP5)2026-01-19csaf · suse_csafDE
Security update for the Linux Kernel (Live Patch 21 for SUSE Linux Enterprise 15 SP5)
SUSE-SU-2026:0174-1Security update for the Linux Kernel (Live Patch 34 for SUSE Linux Enterprise 15 SP4)2026-01-19csaf · suse_csafDE
Security update for the Linux Kernel (Live Patch 34 for SUSE Linux Enterprise 15 SP4)
SUSE-SU-2026:0246-1Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise 15 SP5)2026-01-22csaf · suse_csafDE
Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise 15 SP5)
WID-SEC-W-2025-0047Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2025-01-12csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen und weitere nicht spezifizierte Angriffe zu starten.
WID-SEC-W-2026-3595IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-09-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.
CERTFR-2026-AVI-1333Multiples vulnérabilités dans le noyau Linux d'UbuntuFrançais2026-10-16vendor · certfrFR

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund suse_csaf certfr NVD CVE.org MITRE

published 2025-01-11modified 2026-10-15

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+12021 more

references (24)

External citations — patches, advisories, analysis.

scry

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