Answer in brief
CVE-2026-74680 records a Unknown severity vulnerability in usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1b0e614652344a2d39eb336f3dc07651782883bf <6133b461058316e3ccba7331f974d110d4c08b23 || >=1b0e614652344a2d39eb336f3dc07651782883bf <61093d7f1144f6a15bac505df35e5f535ade2ac1 || >=1b0e614652344a2d39eb336f3dc07651782883bf <645d98dbccdbfdbf0129f48822af7183492de091 || >=1b0e614652344a2d39eb336f3dc07651782883bf <993f7677949e3d72e360e86eed1f41c2511f75ed || >=1b0e614652344a2d39eb336f3dc07651782883bf <939b6a41f681aea52af678053072ee443068e93e || >=1b0e614652344a2d39eb336f3dc07651782883bf <2f73a065791d2a8e3f0bdf29248e33600359e865 || >=1b0e614652344a2d39eb336f3dc07651782883bf <0af047703dbed8224552587ed436f14a24371b46 || >=1b0e614652344a2d39eb336f3dc07651782883bf <c2f811314be351d86b6ab41e9297ae80d8da6f86 | 6133b461058316e3ccba7331f974d110d4c08b23, 61093d7f1144f6a15bac505df35e5f535ade2ac1, 645d98dbccdbfdbf0129f48822af7183492de091, 993f7677949e3d72e360e86eed1f41c2511f75ed, 939b6a41f681aea52af678053072ee443068e93e, 2f73a065791d2a8e3f0bdf29248e33600359e865, 0af047703dbed8224552587ed436f14a24371b46, c2f811314be351d86b6ab41e9297ae80d8da6f86 |
| Linux/Linuxgeneric | 2.6.13 | Not reported |
Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 22, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm() If cxacru_cm() encounters an error while submitting or waiting for snd_urb, it aborts and returns the error without killing the already submitted rcv_urb. This leaves the rcv_urb active. When this happens during initialization (e.g., in cxacru_atm_start()), the driver may ignore the error and proceed to call cxacru_poll_status(), which invokes cxacru_cm() again. Attempting to submit the still-active rcv_urb triggers a warning in usb_submit_urb(): cxacru 1-1:1.0: send of cm 0x84 failed (-104) ATM dev 0: cxacru_atm_start: CHIP_ADSL_LINE_START returned -104 ------------[ cut here ]------------ URB ffff88812658d200 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0 drivers/usb/core/urb.c:379 ... Call Trace: <TASK> cxacru_cm+0x21a/0xf10 drivers/usb/atm/cxacru.c:631 cxacru_cm_get_array drivers/usb/atm/cxacru.c:722 [inline] cxacru_poll_status+0x178/0x1110 drivers/usb/atm/cxacru.c:828 cxacru_atm_start+0x185/0x360 drivers/usb/atm/cxacru.c:814 usbatm_atm_init+0x144/0x3a0 drivers/usb/atm/usbatm.c:927 usbatm_usb_probe+0x15cb/0x1db0 drivers/usb/atm/usbatm.c:1178 cxacru_usb_probe+0x17f/0x220 drivers/usb/atm/cxacru.c:1370 ... To fix this, ensure that rcv_urb is properly killed if cxacru_cm() aborts early. We can safely call usb_kill_urb() on rcv_urb in the error path, as it is safe to call even if the URB is not active (e.g., if it failed to submit in the first place, or if it already completed).
Quoted source text, attributed separately from HOL analysis.