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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
10 Nov 2025, 20:58
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/056ebbddb8faf4ddf83d005454dd78fc25c2d897 - Patch | |
| References | () https://git.kernel.org/stable/c/1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f - Patch | |
| References | () https://git.kernel.org/stable/c/1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d - Patch | |
| References | () https://git.kernel.org/stable/c/441021e5b3c7d9bd1b963590652c415929f3b157 - Patch | |
| References | () https://git.kernel.org/stable/c/665ce421041890571852422487f4c613d1824ba9 - Patch | |
| References | () https://git.kernel.org/stable/c/c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4 - Patch | |
| References | () https://git.kernel.org/stable/c/f4b0174e9f18aaba59ee6ffdaf8827a7f94eb606 - Patch | |
| References | () https://git.kernel.org/stable/c/f5178c41bb43444a6008150fe6094497135d07cb - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html - Mailing List, Third Party Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Mailing List, Third Party Advisory | |
| CPE | cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
|
| CWE | CWE-787 |
03 Nov 2025, 20:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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03 Nov 2025, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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04 Jun 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Summary |
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20 May 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-05-20 16:15
Updated : 2025-11-10 20:58
NVD link : CVE-2025-37923
Mitre link : CVE-2025-37923
CVE.ORG link : CVE-2025-37923
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write