CVE-2025-38528
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: Reject %p% format string in bprintf-like helpers
In the Linux kernel, the following vulnerability has been resolved: bpf: Reject %p% format string in bprintf-like helpers static const char fmt[] = "%p%"; bpf_trace_printk(fmt, sizeof(fmt)); The above BPF program isn't rejected and causes a kernel warning at runtime: Please remove unsupported %\x00 in format string WARNING: CPU: 1 PID: 7244 at lib/vsprintf.c:2680 format_decode+0x49c/0x5d0 This happens because bpf_bprintf_prepare skips over the second %, detected as punctuation, while processing %p. This patch fixes it by not skipping over punctuation. %\x00 is then processed in the next iteration and rejected.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | 97303e541e12f1fea97834ec64b98991e8775f39 | Unavailable | None listed |
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | 61d5fa45ed13e42af14c7e959baba9908b8ee6d4 | Unavailable | None listed |
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | e7be679124bae8cf4fa6e40d7e1661baddfb3289 | Unavailable | None listed |
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | 6952aeace93f8c9ea01849efecac24dd3152c9c9 | Unavailable | None listed |
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | 1c5f5fd47bbda17cb885fe6f03730702cd53d3f8 | Unavailable | None listed |
| 48cac3f4a96ddf08df8e53809ed066de0dc93915 | affected | git | f8242745871f81a3ac37f9f51853d12854fd0b58 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.13 | Unavailable | None listed |
| 5.15.190 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.147 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.100 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.40 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.8 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |