Answer in brief
CVE-2026-72113 records a High severity (CVSS 7.8) vulnerability in can: bcm: add missing device refcount for CAN filter removal. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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.
CVSS is 7.8. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <84aa4807816e405c1bf87114fc63e06d244281ef || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <633bda66fbf309f5de5e1ad6defe8e6b1d77a20f || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <b024c21c9066f6957b7d4a8f2037e4b000c5e041 || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <04d23061bbf18d5d81022eb21e9d32e99d24468d || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <d59948293ea34b6337ce2b5febab8510de70048c | 84aa4807816e405c1bf87114fc63e06d244281ef, 633bda66fbf309f5de5e1ad6defe8e6b1d77a20f, b024c21c9066f6957b7d4a8f2037e4b000c5e041, 04d23061bbf18d5d81022eb21e9d32e99d24468d, d59948293ea34b6337ce2b5febab8510de70048c |
| Linux/Linuxgeneric | 2.6.25 | Not reported |
| Linux/Linuxgeneric | >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <bd5232663524e94cc5aad861dca11e3db8e2ab6f || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <ee8b36d0faca08f35b889b6e9aa850695e5b8ba9 || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <dcaee869913c7210cd47ed0a8f27349d7bdcdb7b || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <84aa4807816e405c1bf87114fc63e06d244281ef || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <633bda66fbf309f5de5e1ad6defe8e6b1d77a20f || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <b024c21c9066f6957b7d4a8f2037e4b000c5e041 || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <04d23061bbf18d5d81022eb21e9d32e99d24468d || >=ffd980f976e7fd666c2e61bf8ab35107efd11828 <d59948293ea34b6337ce2b5febab8510de70048c | bd5232663524e94cc5aad861dca11e3db8e2ab6f, ee8b36d0faca08f35b889b6e9aa850695e5b8ba9, dcaee869913c7210cd47ed0a8f27349d7bdcdb7b, 84aa4807816e405c1bf87114fc63e06d244281ef, 633bda66fbf309f5de5e1ad6defe8e6b1d77a20f, b024c21c9066f6957b7d4a8f2037e4b000c5e041, 04d23061bbf18d5d81022eb21e9d32e99d24468d, d59948293ea34b6337ce2b5febab8510de70048c |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing device refcount for CAN filter removal sashiko-bot remarked a problem with a concurrent device unregistration in isotp.c which also is present in the bcm.c code. A former fix for raw.c commit c275a176e4b6 ("can: raw: add missing refcount for memory leak fix") introduced a netdevice_tracker which solves the issue for bcm.c too. bcm_release(), bcm_delete_rx_op() and bcm_notifier() relied on dev_get_by_index(ifindex) to re-find the device for an rx_op before unregistering its filter. If a concurrent NETDEV_UNREGISTER has already unlisted the device from the ifindex table, that lookup fails and can_rx_unregister() is silently skipped, leaving a stale CAN filter pointing at the soon-to-be-freed bcm_op/socket. Hold a netdev_hold()/netdev_put() tracked reference on op->rx_reg_dev from the moment the rx filter is registered in bcm_rx_setup() until it is unregistered in bcm_rx_unreg(), and use that reference directly in bcm_release() and bcm_delete_rx_op() instead of re-looking the device up by ifindex.
Quoted source text, attributed separately from HOL analysis.