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CVE-2025-38736
published 2025-09-05

CVE-2025-38736: In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported…

high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations. Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.

Affected

22 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.153-1 (bookworm)linux 6.1.153-1 (bookworm)
debianlinux-6.1< linux 6.1.153-1 (bookworm)linux 6.1.153-1 (bookworm)
linuxlinux
linuxlinux>= 4faff70959d51078f9ee8372f8cff0d7045e4114 < 24ef2f53c07f273bad99173e27ee88d44d135b1c24ef2f53c07f273bad99173e27ee88d44d135b1c
linuxlinux>= 59ed6fbdb1bc03316e09493ffde7066f031c7524 < 8f141f2a4f2ef8ca865d5921574c3d6535e00a498f141f2a4f2ef8ca865d5921574c3d6535e00a49
linuxlinux>= 6.12.43 < 6.12.446.12.44
linuxlinux>= 6.15.11 < 6.166.16
linuxlinux>= 6.16.2 < 6.16.46.16.4
linuxlinux>= 75947d3200de98a9ded9ad8972e02f1a177097fe < fcb4ce9f729c1d08e53abf9d449340e24c3edee6fcb4ce9f729c1d08e53abf9d449340e24c3edee6
linuxlinux>= ad1f8313aeec0115f9978bd2d002ef4a8d96c773 < 523eab02fce458fa6d3c51de5bb055800986953e523eab02fce458fa6d3c51de5bb055800986953e
linuxlinux>= ccef5ee4adf56472aa26bdd1f821a6d0cd06089a < 748da80831221ae24b4bc8d7ffb22acd5712a341748da80831221ae24b4bc8d7ffb22acd5712a341
linuxlinux>= ee2cd40b0bb46056949a2319084a729d95389386 < 22042ffedd8c2c6db08ccdd6d4273068eddd3c5c22042ffedd8c2c6db08ccdd6d4273068eddd3c5c
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.153-16.1.153-1
linuxlinux_kernel>= 0 < 6.12.48-16.12.48-1
linuxlinux_kernel>= 0 < 6.16.5-16.16.5-1
linuxlinux_kernel>= 6.15.11 < 6.166.16
linuxlinux_kernel>= 6.16.2 < 6.16.46.16.4
msrcazl3_kernel_6.6.96.2-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.96.2-2_on_azure_linux_3.0

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH