CVE-2025-40164
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-40164
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40164.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-40164
- Downstream
- Related
- Published
- 2025-11-12T10:26:23.482Z
- Modified
- 2026-01-08T20:18:58.421631Z
- Summary
- usbnet: Fix using smp_processor_id() in preemptible code warnings
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usbnet: Fix using smpprocessorid() in preemptible code warnings
Syzbot reported the following warning:
BUG: using smpprocessorid() in preemptible [00000000] code: dhcpcd/2879 caller is usbnetskbreturn+0x74/0x490 drivers/net/usb/usbnet.c:331 CPU: 1 UID: 0 PID: 2879 Comm: dhcpcd Not tainted 6.15.0-rc4-syzkaller-00098-g615dca38c2ea #0 PREEMPT(voluntary) Call Trace: <TASK> _dumpstack lib/dumpstack.c:94 [inline] dumpstacklvl+0x16c/0x1f0 lib/dumpstack.c:120 checkpreemptiondisabled+0xd0/0xe0 lib/smpprocessorid.c:49 usbnetskbreturn+0x74/0x490 drivers/net/usb/usbnet.c:331 usbnetresumerx+0x4b/0x170 drivers/net/usb/usbnet.c:708 usbnetchangemtu+0x1be/0x220 drivers/net/usb/usbnet.c:417 _devsetmtu net/core/dev.c:9443 [inline] netifsetmtuext+0x369/0x5c0 net/core/dev.c:9496 netifsetmtu+0xb0/0x160 net/core/dev.c:9520 devsetmtu+0xae/0x170 net/core/devapi.c:247 devifsioc+0xa31/0x18d0 net/core/devioctl.c:572 devioctl+0x223/0x10e0 net/core/devioctl.c:821 sockdoioctl+0x19d/0x280 net/socket.c:1204 sockioctl+0x42f/0x6a0 net/socket.c:1311 vfsioctl fs/ioctl.c:51 [inline] _dosysioctl fs/ioctl.c:906 [inline] _sesysioctl fs/ioctl.c:892 [inline] _x64sysioctl+0x190/0x200 fs/ioctl.c:892 dosyscallx64 arch/x86/entry/syscall64.c:63 [inline] dosyscall64+0xcd/0x260 arch/x86/entry/syscall64.c:94 entrySYSCALL64afterhwframe+0x77/0x7f
For historical and portability reasons, the netifrx() is usually run in the softirq or interrupt context, this commit therefore add localbhdisable/enable() protection in the usbnetresume_rx().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40164.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0134c7bff14bd50314a4f92b182850ddfc38e255
- https://git.kernel.org/stable/c/327cd4b68b4398b6c24f10eb2b2533ffbfc10185
- https://git.kernel.org/stable/c/d1944bab8e0c1511f0cbf364aa06547735bb0ddb
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40164.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40164
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
-
Introduced43daa96b166c3cf5ff30dfac0c5efa2620e4beabFixedd1944bab8e0c1511f0cbf364aa06547735bb0ddbFixed0134c7bff14bd50314a4f92b182850ddfc38e255Fixed327cd4b68b4398b6c24f10eb2b2533ffbfc10185