CVE-2023-54303
highPriorität · verfolgen · 0EPSS 0.002 · 4. PerzentilDEEUEPSS · bewertet 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpf_perf_event_output The nesting protection in bpf_perf_event_output relies on disabled preemption, which is guaranteed for kprobes and tracepoints. However bpf_perf_event_output can be also called from uprobes context through bpf_prog_run_array_sleepable function which disables migration, but keeps preemption enabled. This can cause task to be preempted by another one inside the nesting protection and lead eventually to two tasks using same perf_sample_data buffer and cause crashes like: kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address: ffffffff82be3eea ... Call Trace: ? __die+0x1f/0x70 ? page_fault_oops+0x176/0x4d0 ? exc_page_fault+0x132/0x230 ? asm_exc_page_fault+0x22/0x30 ? perf_output_sample+0x12b/0x910 ? perf_event_output+0xd0/0x1d0 ? bpf_perf_event_output+0x162/0x1d0 ? bpf_prog_c6271286d9a4c938_krava1+0x76/0x87 ? __uprobe_perf_func+0x12b/0x540 ? uprobe_dispatcher+0x2c4/0x430 ? uprobe_notify_resume+0x2da/0xce0 ? atomic_notifier_call_chain+0x7b/0x110 ? exit_to_user_mode_prepare+0x13e/0x290 ? irqentry_exit_to_user_mode+0x5/0x30 ? asm_exc_int3+0x35/0x40 Fixing this by disabling preemption in bpf_perf_event_output.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behobencluster-md-kmp-rt-0:6.4.0-150700.7.28.1.x86_64 as component of SUSE Real Time Module 15 SP7suse_csaf
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- Behobenkernel-source-rt-0:6.4.0-40.1.noarch as component of SUSE Linux Micro 6.0suse_csaf
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- Behobenkernel-devel-rt-0:6.4.0-40.1.noarch as component of SUSE Linux Micro 6.1suse_csaf
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- Behobenkernel-rt-0:6.4.0-40.1.aarch64 as component of SUSE Linux Micro 6.1suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-rt-0:6.4.0-40.1.x86_64 as component of SUSE Linux Micro 6.1suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-rt-devel-0:6.4.0-40.1.aarch64 as component of SUSE Linux Micro 6.1suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Behobenkernel-rt-devel-0:6.4.0-40.1.x86_64 as component of SUSE Linux Micro 6.1suse_csaf
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- Behobenkernel-rt-livepatch-0:6.4.0-40.1.x86_64 as component of SUSE Linux Micro 6.1suse_csaf
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- Behobenkernel-source-rt-0:6.4.0-40.1.noarch as component of SUSE Linux Micro 6.1suse_csaf
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cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.6–7.8
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (24)
Betroffene Produkte und Versionsbereiche.
- IBM DataPower Gateway 10.5.0.0-10.5.0.20alle Versionencert_bundDEcpe:/a:ibm:datapower_gateway:10.5.0.0_-_10.5.0.20
- IBM DataPower Gateway 10.6.0.0-10.6.0.8alle Versionencert_bundDEcpe:/a:ibm:datapower_gateway:10.6.0.0_-_10.6.0.8
- IBM Power Hardware Management Consolealle Versionencert_bundDEcpe:/a:ibm:hardware_management_console:-
Advisories (7)
Hersteller- und Ökosystem-Meldungen dazu.
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Security update for the Linux Kernel
- SUSE-SU-2026:0281-1Security update for the Linux Kernel2026-01-23csaf · suse_csafDE
Security update for the Linux Kernel
- SUSE-SU-2026:20477-1Security update for the Linux Kernel2026-02-24csaf · suse_csafDE
Security update for the Linux Kernel
- SUSE-SU-2026:20498-1Security update for the Linux Kernel2026-02-24csaf · suse_csafDE
Security update for the Linux Kernel
- SUSE-SU-2026:20845-1Security update for the Linux Kernel2026-03-24csaf · suse_csafDE
Security update for the Linux Kernel
- SUSE-SU-2026:20876-1Security update for the Linux Kernel2026-03-24csaf · suse_csafDE
Security update for the Linux Kernel
- WID-SEC-W-2025-2941Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2025-12-30csaf · cert_bundDE
Ein Angreifer kann diese Schwachstellen ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu Denial‑of‑Service, Speicherbeschädigung oder weiteren nicht definierten Auswirkungen führen.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (11)
Externe Belege — Patches, Meldungen, Analysen.
- https://git.kernel.org/stable/c/3654ed5daf492463c3faa434c7000d45c2da2acecnnvd
- https://git.kernel.org/stable/c/a0ac32cf61e5a76e2429e486925a52ee41dd75e3cnnvd
- https://git.kernel.org/stable/c/f2c67a3e60d1071b65848efaa8c3b66c363dd025cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-30-12-2025-49211cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/3654ed5daf492463c3faa434c7000d45c2da2aceenisa_euvd
- https://git.kernel.org/stable/c/a0ac32cf61e5a76e2429e486925a52ee41dd75e3enisa_euvd
- https://git.kernel.org/stable/c/f2c67a3e60d1071b65848efaa8c3b66c363dd025enisa_euvd
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