CVE-2025-39914
published 2025-10-01CVE-2025-39914: In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in trace_pid_write Syzkaller trigger a…
medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
In the Linux kernel, the following vulnerability has been resolved:
tracing: Silence warning when chunk allocation fails in trace_pid_write
Syzkaller trigger a fault injection warning:
WARNING: CPU: 1 PID: 12326 at tracepoint_add_func+0xbfc/0xeb0
Modules linked in:
CPU: 1 UID: 0 PID: 12326 Comm: syz.6.10325 Tainted: G U 6.14.0-rc5-syzkaller #0
Tainted: [U]=USER
Hardware name: Google Compute Engine/Google Compute Engine
RIP: 0010:tracepoint_add_func+0xbfc/0xeb0 kernel/tracepoint.c:294
Code: 09 fe ff 90 0f 0b 90 0f b6 74 24 43 31 ff 41 bc ea ff ff ff
RSP: 0018:ffffc9000414fb48 EFLAGS: 00010283
RAX: 00000000000012a1 RBX: ffffffff8e240ae0 RCX: ffffc90014b78000
RDX: 0000000000080000 RSI: ffffffff81bbd78b RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffffffffffef
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff81c264f0
FS: 00007f27217f66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e80dff8 CR3: 00000000268f8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tracepoint_probe_register_prio+0xc0/0x110 kernel/tracepoint.c:464
register_trace_prio_sched_switch include/trace/events/sched.h:222 [inline]
register_pid_events kernel/trace/trace_events.c:2354 [inline]
event_pid_write.isra.0+0x439/0x7a0 kernel/trace/trace_events.c:2425
vfs_write+0x24c/0x1150 fs/read_write.c:677
ksys_write+0x12b/0x250 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
We can reproduce the warning by following the steps below:
1. echo 8 >> set_event_notrace_pid. Let tr->filtered_pids owns one pid
and register sched_switch tracepoint.
2. echo ' ' >> set_event_pid, and perform fault injection duri
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 8d6e90983ade25ec7925211ac31d9ccaf64b7edf < 7583a73c53f1d1ae7a39b130eb7190a11f0a902f | 7583a73c53f1d1ae7a39b130eb7190a11f0a902f |
| linux | linux | >= 8d6e90983ade25ec7925211ac31d9ccaf64b7edf < 1262bda871dace8c6efae25f3b6a2d34f6f06d54 | 1262bda871dace8c6efae25f3b6a2d34f6f06d54 |
| linux | linux | >= 8d6e90983ade25ec7925211ac31d9ccaf64b7edf < 88525accf16947ab459f8e91c27c8c53e1d612d7 | 88525accf16947ab459f8e91c27c8c53e1d612d7 |
| linux | linux | >= 8d6e90983ade25ec7925211ac31d9ccaf64b7edf < 793338906ff57d8c683f44fe48ca99d49c8782a7 | 793338906ff57d8c683f44fe48ca99d49c8782a7 |
| linux | linux | >= 8d6e90983ade25ec7925211ac31d9ccaf64b7edf < cd4453c5e983cf1fd5757e9acb915adb1e4602b6 | cd4453c5e983cf1fd5757e9acb915adb1e4602b6 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.153-1 | 6.1.153-1 |
| linux | linux_kernel | >= 0 < 6.12.48-1 | 6.12.48-1 |
| linux | linux_kernel | >= 0 < 6.16.8-1 | 6.16.8-1 |
| linux | linux_kernel | >= 0 < 6.8.0-106.106 | 6.8.0-106.106 |
| linux | linux_kernel | >= 5.16 < 6.1.153 | 6.1.153 |
| linux | linux_kernel | >= 6.13 < 6.16.8 | 6.16.8 |
| linux | linux_kernel | >= 6.2 < 6.6.107 | 6.6.107 |
| linux | linux_kernel | >= 6.7 < 6.12.48 | 6.12.48 |
| msrc | azl3_kernel_6.6.104.2-4_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.2-2_on_azure_linux_3.0 | — | — |
| ubuntu | linux-xilinx | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM