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CVE-2025-38153
published 2025-07-03

CVE-2025-38153: In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: fix error handling of usbnet read calls Syzkaller, courtesy of syzbot…

high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: fix error handling of usbnet read calls Syzkaller, courtesy of syzbot, identified an error (see report [1]) in aqc111 driver, caused by incomplete sanitation of usb read calls' results. This problem is quite similar to the one fixed in commit 920a9fa27e78 ("net: asix: add proper error handling of usb read errors"). For instance, usbnet_read_cmd() may read fewer than 'size' bytes, even if the caller expected the full amount, and aqc111_read_cmd() will not check its result properly. As [1] shows, this may lead to MAC address in aqc111_bind() being only partly initialized, triggering KMSAN warnings. Fix the issue by verifying that the number of bytes read is as expected and not less. [1] Partial syzbot report: BUG: KMSAN: uninit-value in is_valid_ether_addr include/linux/etherdevice.h:208 [inline] BUG: KMSAN: uninit-value in usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830 is_valid_ether_addr include/linux/etherdevice.h:208 [inline] usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x4d1/0xd90 drivers/base/dd.c:658 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800 ... Uninit was stored to memory at: dev_addr_mod+0xb0/0x550 net/core/dev_addr_lists.c:582 __dev_addr_set include/linux/netdevice.h:4874 [inline] eth_hw_addr_set include/linux/etherdevice.h:325 [inline] aqc111_bind+0x35f/0x1150 drivers/net/usb/aqc111.c:717 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396 ... Uninit was stored to memory at: ether_addr_copy include/linux/etherdevice.h:305 [inline] aqc111_read_perm_mac drivers/net/usb/aqc111.c:663 [inline] aqc111_bind+0x794/0x1150 drivers/net/usb/aqc111.c:713 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772 usb_probe_interface+0xd01/0x1310 drivers/usb/co

Affected

35 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 8c97655275482ef5384ce0501640630a0fc0f6f48c97655275482ef5384ce0501640630a0fc0f6f4
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 11273279012c922f37cfb4dd95d142803fc07b9811273279012c922f37cfb4dd95d142803fc07b98
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < f398d2dfe450ce2c031d10b585448862d74a0501f398d2dfe450ce2c031d10b585448862d74a0501
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < acb47a40b5e38be03ef659b7bacdddc592ed73b7acb47a40b5e38be03ef659b7bacdddc592ed73b7
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 60790d287c1a1ced3554d4a87c2f27bf299a932a60790d287c1a1ced3554d4a87c2f27bf299a932a
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 30a9e834c74e260533b8d0885e3c89f6f32f799330a9e834c74e260533b8d0885e3c89f6f32f7993
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 7c01863b1c47f040d9674171e77789a423b9b1287c01863b1c47f040d9674171e77789a423b9b128
linuxlinux>= df2d59a2ab6c9ceac2c4104272fce03493b8f62f < 405b0d610745fb5e84fc2961d9b960abb9f3d107405b0d610745fb5e84fc2961d9b960abb9f3d107
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 5.15.0-156.1665.15.0-156.166
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 5.0 < 5.4.2955.4.295
linuxlinux_kernel>= 5.11 < 5.15.1865.15.186
linuxlinux_kernel>= 5.16 < 6.1.1426.1.142
linuxlinux_kernel>= 5.5 < 5.10.2395.10.239
linuxlinux_kernel>= 6.13 < 6.15.36.15.3
linuxlinux_kernel>= 6.2 < 6.6.946.6.94
linuxlinux_kernel>= 6.7 < 6.12.346.12.34

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