Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
15f02b91056253e8cdc592888f431da0731337b8 to < 3c8eaa91eb433c450426539290be4ffe282e9f00affected15f02b91056253e8cdc592888f431da0731337b8 to < ecfed1e0d8efecad6737a0d83e21d2fd021d8c48affected15f02b91056253e8cdc592888f431da0731337b8 to < e6833e737a51db1e5ea0401322acf5e22abd8be6affected15f02b91056253e8cdc592888f431da0731337b8 to < 6319b38fe69f56ed95680ade485b957a53fff642affected15f02b91056253e8cdc592888f431da0731337b8 to < 291eec1041c918c460dc9702e44edd17794b4a4baffected15f02b91056253e8cdc592888f431da0731337b8 to < 41e29548b5e8b5e5fcf708786b3bea67cab107faaffected15f02b91056253e8cdc592888f431da0731337b8 to < d153b8898c0051eb8b6a083b35cbe304a5886bd5affected15f02b91056253e8cdc592888f431da0731337b8 to < 41c2713b204e6cb6a94587bc6bf6935107df5479affected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected5.10.259 to ≤ 5.10.*unaffected5.15.210 to ≤ 5.15.*unaffected6.1.176 to ≤ 6.1.*unaffected6.6.143 to ≤ 6.6.*unaffected6.12.93 to ≤ 6.12.*unaffected6.18.35 to ≤ 6.18.*unaffected7.0.12 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00 ↗
- https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48 ↗
- https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6 ↗
- https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642 ↗
- https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b ↗
- https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa ↗
- https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5 ↗
- https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479 ↗