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CVE-2023-53827

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CVE-2023-53827

Published: Dec 9, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} Similar to commit d0be8347c623 ("Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put"), just use l2cap_chan_hold_unless_zero to prevent referencing a channel that is about to be destroyed.

VendorProductVersions

Linux

Linux

affected
61d6ef3e3408cdf7e622646fb90a9f7f9560b943 - < f2d38e77aa5f3effc143e7dd24da8acf02925958
affected
61d6ef3e3408cdf7e622646fb90a9f7f9560b943 - < 1351551aa9058e07a20a27a158270cf84fcde621
affected
61d6ef3e3408cdf7e622646fb90a9f7f9560b943 - < c02421992505c95c7f3c9ad59ee35e22eac60988
affected
61d6ef3e3408cdf7e622646fb90a9f7f9560b943 - < d9ba36c22a7bb09d6bac4cc2f243eff05da53f43
affected
61d6ef3e3408cdf7e622646fb90a9f7f9560b943 - < ac6725a634f7e8c0330610a8527f20c730b61115

+3 more versions

Linux

Linux

affected
3.5
unaffected
0 - < 3.5
unaffected
4.14.313 - <= 4.14.*
unaffected
4.19.281 - <= 4.19.*
unaffected
5.4.241 - <= 5.4.*

+5 more versions

References

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