CVE - CVE-2025-37923

CVE-ID
CVE-2025-37923	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/056ebbddb8faf4ddf83d005454dd78fc25c2d897 URL:https://git.kernel.org/stable/c/056ebbddb8faf4ddf83d005454dd78fc25c2d897 MISC:https://git.kernel.org/stable/c/1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f URL:https://git.kernel.org/stable/c/1a3f9482b50b74fa9421bff8ceecfefd0dc06f8f MISC:https://git.kernel.org/stable/c/1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d URL:https://git.kernel.org/stable/c/1f27a3e93b8d674b24b27fcdbc6f72743cd96c0d MISC:https://git.kernel.org/stable/c/441021e5b3c7d9bd1b963590652c415929f3b157 URL:https://git.kernel.org/stable/c/441021e5b3c7d9bd1b963590652c415929f3b157 MISC:https://git.kernel.org/stable/c/c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4 URL:https://git.kernel.org/stable/c/c5d2b66c5ef5037b4b4360e5447605ff00ba1bd4 MISC:https://git.kernel.org/stable/c/f5178c41bb43444a6008150fe6094497135d07cb URL:https://git.kernel.org/stable/c/f5178c41bb43444a6008150fe6094497135d07cb
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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