CVE-2025-37923

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Source
https://cve.org/CVERecord?id=CVE-2025-37923
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37923.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37923
Downstream
Related
Published
2025-05-20T15:21:51Z
Modified
2026-08-12T03:30:24Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
tracing: Fix oob write in trace_seq_to_buffer()
Details

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: __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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37923.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3c56819b14b00dd449bd776303e61f8532fad09f
Fixed
f4b0174e9f18aaba59ee6ffdaf8827a7f94eb606
Fixed
665ce421041890571852422487f4c613d1824ba9
Fixed
1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f
Fixed
441021e5b3c7d9bd1b963590652c415929f3b157
Fixed
056ebbddb8faf4ddf83d005454dd78fc25c2d897
Fixed
1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d
Fixed
c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4
Fixed
f5178c41bb43444a6008150fe6094497135d07cb

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37923.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.30
Fixed
5.4.294
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.238
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.182
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.138
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.90
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.28
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.14.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37923.json"