Bug 2383909 (CVE-2025-38489) - CVE-2025-38489 kernel: s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again
Summary: CVE-2025-38489 kernel: s390/bpf: Fix bpf_arch_text_poke() with new_addr == NU...
Keywords:
Status: NEW
Alias: CVE-2025-38489
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-28 12:02 UTC by OSIDB Bzimport
Modified: 2025-07-28 15:14 UTC (History)
0 users

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Description OSIDB Bzimport 2025-07-28 12:02:33 UTC 
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.
Comment 1 Avinash Hanwate 2025-07-28 15:04:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025072816-CVE-2025-38489-0fd7@gregkh/T
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