cbcvebase.
CVE-2025-21916
published 2025-04-01

CVE-2025-21916: In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: fix a flaw in existing endpoint checks Syzbot once again identified a…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
10.1th percentile
In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: fix a flaw in existing endpoint checks Syzbot once again identified a flaw in usb endpoint checking, see [1]. This time the issue stems from a commit authored by me (2eabb655a968 ("usb: atm: cxacru: fix endpoint checking in cxacru_bind()")). While using usb_find_common_endpoints() may usually be enough to discard devices with wrong endpoints, in this case one needs more than just finding and identifying the sufficient number of endpoints of correct types - one needs to check the endpoint's address as well. Since cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind, switch the endpoint verification approach to usb_check_XXX_endpoints() instead to fix incomplete ep testing. [1] Syzbot report: usb 5-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... RIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649 cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline] cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223 usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058 cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377 usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 ...

Affected

38 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
debianlinux-6.1< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 1aac4be1aaa5177506219f01dce5e29194e5e95a < bf4409f84023b52b5e9b36c0a071a121eee42138bf4409f84023b52b5e9b36c0a071a121eee42138
linuxlinux>= 23926d316d2836315cb113569f91393266eb5b47 < dcd592ab9dd8a2bfc36e75583b9006db2a77ec24dcd592ab9dd8a2bfc36e75583b9006db2a77ec24
linuxlinux>= 2eabb655a968b862bc0c31629a09f0fbf3c80d51 < cfc295f7cccf66cbd5123416bcf1bee2e1bd37decfc295f7cccf66cbd5123416bcf1bee2e1bd37de
linuxlinux>= 2eabb655a968b862bc0c31629a09f0fbf3c80d51 < 903b80c21458bb1e34c3a78c5fdc553821e357f8903b80c21458bb1e34c3a78c5fdc553821e357f8
linuxlinux>= 2eabb655a968b862bc0c31629a09f0fbf3c80d51 < c90aad369899a607cfbc002bebeafd51e31900cdc90aad369899a607cfbc002bebeafd51e31900cd
linuxlinux>= 4.19.317 < 4.204.20
linuxlinux>= 5.10.221 < 5.10.2355.10.235
linuxlinux>= 5.15.162 < 5.15.1795.15.179
linuxlinux>= 5.4.279 < 5.4.2915.4.291
linuxlinux>= 5584c776a1af7807ca815ee6265f2c1429fc5727 < 197e78076c5ecd895f109158c4ea2954b9919af6197e78076c5ecd895f109158c4ea2954b9919af6
linuxlinux>= 6.1.97 < 6.1.1316.1.131
linuxlinux>= 6.6.37 < 6.6.836.6.83
linuxlinux>= 6.9.8 < 6.106.10
linuxlinux>= 75ddbf776dd04a09fb9e5267ead5d0c989f84506 < 319529e0356bd904528c64647725a2272d297c83319529e0356bd904528c64647725a2272d297c83
linuxlinux>= f536f09eb45e4de8d1b9accee9d992aa1846f1d4 < a0475a885d69849b1ade38add6d64338dfa83a8fa0475a885d69849b1ade38add6d64338dfa83a8f
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.133-16.1.133-1
linuxlinux_kernel>= 0 < 6.12.19-16.12.19-1

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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