CVE-2026-63975

CVE CVE-2026-63975EUVD EUVD-2026-45748Published 2026-07-19T14:56:00.000ZLast changed 2026-08-05T12:37:46.000ZCVSS 8.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2cap_chan_del may invalidate the tmp cursor created by list_for_each_entry_safe and in fact it is the wrong procedure as the chan->dcid may be assigned previously it really needs to be disconnected. Calling l2cap_chan_clone directly may still lead to l2cap_chan_del so instead schedule l2cap_chan_timeout with delay 0 to close the channel asynchronously.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 15f02b91056253e8cdc592888f431da0731337b8 <291eec1041c918c460dc9702e44edd17794b4a4b; 15f02b91056253e8cdc592888f431da0731337b8 <e6833e737a51db1e5ea0401322acf5e22abd8be6; patch: 5.10.259; patch: 6.1.176; patch: 6.6.143; 5.7; 15f02b91056253e8cdc592888f431da0731337b8 <41c2713b204e6cb6a94587bc6bf6935107df5479; 15f02b91056253e8cdc592888f431da0731337b8 <6319b38fe69f56ed95680ade485b957a53fff642; patch: 7.1; 15f02b91056253e8cdc592888f431da0731337b8 <ecfed1e0d8efecad6737a0d83e21d2fd021d8c48; 15f02b91056253e8cdc592888f431da0731337b8 <d153b8898c0051eb8b6a083b35cbe304a5886bd5; patch: 7.0.12; patch: 6.12.93; patch: 5.15.210; 15f02b91056253e8cdc592888f431da0731337b8 <3c8eaa91eb433c450426539290be4ffe282e9f00; patch: 0; patch: 6.18.35; 15f02b91056253e8cdc592888f431da0731337b8 <41e29548b5e8b5e5fcf708786b3bea67cab107fa

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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