CVE-2025-38285
bpf: Fix WARN() in get_bpf_raw_tp_regs
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix WARN() in get_bpf_raw_tp_regs syzkaller reported an issue: WARNING: CPU: 3 PID: 5971 at kernel/trace/bpf_trace.c:1861 get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861 Modules linked in: CPU: 3 UID: 0 PID: 5971 Comm: syz-executor205 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861 RSP: 0018:ffffc90003636fa8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff81c6bc4c RDX: ffff888032efc880 RSI: ffffffff81c6bc83 RDI: 0000000000000005 RBP: ffff88806a730860 R08: 0000000000000005 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004 R13: 0000000000000001 R14: ffffc90003637008 R15: 0000000000000900 FS: 0000000000000000(0000) GS:ffff8880d6cdf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7baee09130 CR3: 0000000029f5a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1934 [inline] bpf_get_stack_raw_tp+0x24/0x160 kernel/trace/bpf_trace.c:1931 bpf_prog_ec3b2eefa702d8d3+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline] bpf_trace_run3+0x23f/0x5a0 kernel/trace/bpf_trace.c:2405 __bpf_trace_mmap_lock_acquire_returned+0xfc/0x140 include/trace/events/mmap_lock.h:47 __traceiter_mmap_lock_acquire_returned+0x79/0xc0 include/trace/events/mmap_lock.h:47 __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] __mmap_lock_do_trace_acquire_returned+0x138/0x1f0 mm/mmap_lock.c:35 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:204 [inline] stack_map_get_build_id_offset+0x535/0x6f0 kernel/bpf/stackmap.c:157 __bpf_get_stack+0x307/0xa10 kernel/bpf/stackmap.c:483 ____bpf_get_stack kernel/bpf/stackmap.c:499 [inline] bpf_get_stack+0x32/0x40 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline] bpf_get_stack_raw_tp+0x124/0x160 kernel/trace/bpf_trace.c:1931 bpf_prog_ec3b2eefa702d8d3+0x43/0x47 Tracepoint like trace_mmap_lock_acquire_returned may cause nested call as the corner case show above, which will be resolved with more general method in the future. As a result, WARN_ON_ONCE will be triggered. As Alexei suggested, remove the WARN_ON_ONCE first.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < 44ebe361abb322d2afd77930fa767a99f271c4d1 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < 147ea936fc6fa8fe0c93f0df918803a5375ca535 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < ee90be48edb3dac612e0b7f5332482a9e8be2696 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < e167414beabb1e941fe563a96becc98627d5bdf6 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < 6d8f39875a10a194051c3eaefebc7ac06a34aaf3 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < c98cdf6795a36bca163ebb40411fef1687b9eb13 (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < 18e8cbbae79cb35bdce8a01c889827b9799c762e (affected, git) ≥ 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99; < 3880cdbed1c4607e378f58fa924c5d6df900d1d3 (affected, git) a7177b94aff4febe657fe31bb7e5ecdef72079f4 (affected, git) 2a9fedc1ef4be2acb4fd4674f405c21c811e1505 (affected, git) ≥ 4.19.57; < 4.20 (affected, semver) ≥ 5.1.16; < 5.2 (affected, semver) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
5.2 (affected) ≥ 0; < 5.2 (unaffected, semver) ≥ 5.4.295; ≤ 5.4.* (unaffected, semver) ≥ 5.10.239; ≤ 5.10.* (unaffected, semver) ≥ 5.15.186; ≤ 5.15.* (unaffected, semver) ≥ 6.1.142; ≤ 6.1.* (unaffected, semver) ≥ 6.6.94; ≤ 6.6.* (unaffected, semver) ≥ 6.12.34; ≤ 6.12.* (unaffected, semver) ≥ 6.15.3; ≤ 6.15.* (unaffected, semver) ≥ 6.16; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Siemens |
≥ V3.1.5; < * (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Siemens |
≥ V3.1.5; < * (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Siemens |
≥ V3.1.5; < * (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/44ebe361abb322d2afd77930fa767a99f271c4d1CNA: Linux
- https://git.kernel.org/stable/c/147ea936fc6fa8fe0c93f0df918803a5375ca535CNA: Linux
- https://git.kernel.org/stable/c/ee90be48edb3dac612e0b7f5332482a9e8be2696CNA: Linux
- https://git.kernel.org/stable/c/e167414beabb1e941fe563a96becc98627d5bdf6CNA: Linux
- https://git.kernel.org/stable/c/6d8f39875a10a194051c3eaefebc7ac06a34aaf3CNA: Linux
- https://git.kernel.org/stable/c/c98cdf6795a36bca163ebb40411fef1687b9eb13CNA: Linux
- https://git.kernel.org/stable/c/18e8cbbae79cb35bdce8a01c889827b9799c762eCNA: Linux
- https://git.kernel.org/stable/c/3880cdbed1c4607e378f58fa924c5d6df900d1d3CNA: Linux
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlADP: CVE
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlADP: CVE
- https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlADP: siemens-SADP
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