Answer in brief
CVE-2025-37923 records a High severity (CVSS 7.8) vulnerability in tracing: Fix oob write in trace_seq_to_buffer(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3c56819b14b00dd449bd776303e61f8532fad09f <f4b0174e9f18aaba59ee6ffdaf8827a7f94eb606 || >=3c56819b14b00dd449bd776303e61f8532fad09f <665ce421041890571852422487f4c613d1824ba9 || >=3c56819b14b00dd449bd776303e61f8532fad09f <1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f || >=3c56819b14b00dd449bd776303e61f8532fad09f <441021e5b3c7d9bd1b963590652c415929f3b157 || >=3c56819b14b00dd449bd776303e61f8532fad09f <056ebbddb8faf4ddf83d005454dd78fc25c2d897 || >=3c56819b14b00dd449bd776303e61f8532fad09f <1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d || >=3c56819b14b00dd449bd776303e61f8532fad09f <c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4 || >=3c56819b14b00dd449bd776303e61f8532fad09f <f5178c41bb43444a6008150fe6094497135d07cb | f4b0174e9f18aaba59ee6ffdaf8827a7f94eb606, 665ce421041890571852422487f4c613d1824ba9, 1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f, 441021e5b3c7d9bd1b963590652c415929f3b157, 056ebbddb8faf4ddf83d005454dd78fc25c2d897, 1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d, c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4, f5178c41bb43444a6008150fe6094497135d07cb |
| Linux/Linuxgeneric | 2.6.30 | Not reported |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix oob write in trace_seq_to_buffer() syzbot reported this bug: ================================================================== BUG: KASAN: slab-out-of-bounds in trace_seq_to_buffer kernel/trace/trace.c:1830 [inline] BUG: KASAN: slab-out-of-bounds in tracing_splice_read_pipe+0x6be/0xdd0 kernel/trace/trace.c:6822 Write of size 4507 at addr ffff888032b6b000 by task syz.2.320/7260 CPU: 1 UID: 0 PID: 7260 Comm: syz.2.320 Not tainted 6.15.0-rc1-syzkaller-00301-g3bde70a2c827 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xc3/0x670 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189 __asan_memcpy+0x3c/0x60 mm/kasan/shadow.c:106 trace_seq_to_buffer kernel/trace/trace.c:1830 [inline] tracing_splice_read_pipe+0x6be/0xdd0 kernel/trace/trace.c:6822 .... ================================================================== It has been reported that trace_seq_to_buffer() tries to copy more data than PAGE_SIZE to buf. Therefore, to prevent this, we should use the smaller of trace_seq_used(&iter->seq) and PAGE_SIZE as an argument.
Quoted source text, attributed separately from HOL analysis.