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Unrated severityNVD Advisory· Published Jul 28, 2025

s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again

CVE-2025-38489

Description

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

s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again

Commit 7ded842b356d ("s390/bpf: Fix bpf_plt pointer arithmetic") has accidentally removed the critical piece of commit c730fce7c70c ("s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL"), causing intermittent kernel panics in e.g. perf's on_switch() prog to reappear.

Restore the fix and add a comment.

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Affected products

116

Patches

Vulnerability mechanics

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