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CVE-2026-63948

Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn

__set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold()
before scheduling the delayed work.  The normal path in
l2cap_chan_timeout() drops this reference with l2cap_chan_put() at the
end, but the early return when chan->conn is NULL skips the put,
leaking the reference.

Add the missing l2cap_chan_put() before the early return.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 06acb75e7ed600d0bbf7bff5628aa8f24a97978c
Version < 50f1bcaaaa3a80bb1c3472044bc146e8d49d51ee
Status affected
Version e97e16433eb4533083b096a3824b93a5ca3aee79
Version < b5c59a5b469e2a809a2d57eda4ded94235971060
Status affected
Version 8960ff650aec70485b40771cd8e6e8c4cb467d33
Version < 8894c2010435a56ce7c6c2a8785860c13554df2f
Status affected
Version 955b5b6c54d95b5e7444dfc81c95c8e013f27ac0
Version < 63cd225cc13d782a85e2a73c04d0d350153eada1
Status affected
Version adf0398cee86643b8eacde95f17d073d022f782c
Version < 107c826e4ef9ec5ad8f60e6fe64d8d5325ba508f
Status affected
Version adf0398cee86643b8eacde95f17d073d022f782c
Version < e8a5baff5be273ca07771fd2b9bb1f2a4152917b
Status affected
Version adf0398cee86643b8eacde95f17d073d022f782c
Version < 08d81fe96f80a8e20c7acb573b6a45d901fcf2cd
Status affected
Version adf0398cee86643b8eacde95f17d073d022f782c
Version < 9dbd84990394c51f5cee1e8871bb5ff8af5ed939
Status affected
Version e137e2ba96e51902dc2878131823a96bf8e638ae
Status affected
Version 6466ee65e5b27161c846c73ef407f49dfa1bd1d9
Status affected
Version eb86f955488c39526534211f2610e48a5cf8ead4
Status affected
Version 5.10.217
Version < 5.10.259
Status affected
Version 5.15.159
Version < 5.15.210
Status affected
Version 6.1.91
Version < 6.1.176
Status affected
Version 6.6.31
Version < 6.6.143
Status affected
Version 4.19.314
Version < 4.20
Status affected
Version 5.4.276
Version < 5.5
Status affected
Version 6.8.10
Version < 6.9
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.9
Status affected
Version 0
Version < 6.9
Status unaffected
Version <= 5.10.*
Version 5.10.259
Status unaffected
Version <= 5.15.*
Version 5.15.210
Status unaffected
Version <= 6.1.*
Version 6.1.176
Status unaffected
Version <= 6.6.*
Version 6.6.143
Status unaffected
Version <= 6.12.*
Version 6.12.93
Status unaffected
Version <= 6.18.*
Version 6.18.35
Status unaffected
Version <= 7.0.*
Version 7.0.12
Status unaffected
Version <= *
Version 7.1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.114
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/50f1bcaaaa3a80bb1c3472044bc146e8d49d51ee
https://git.kernel.org/stable/c/b5c59a5b469e2a809a2d57eda4ded94235971060
https://git.kernel.org/stable/c/8894c2010435a56ce7c6c2a8785860c13554df2f
https://git.kernel.org/stable/c/63cd225cc13d782a85e2a73c04d0d350153eada1
https://git.kernel.org/stable/c/107c826e4ef9ec5ad8f60e6fe64d8d5325ba508f
https://git.kernel.org/stable/c/e8a5baff5be273ca07771fd2b9bb1f2a4152917b
https://git.kernel.org/stable/c/08d81fe96f80a8e20c7acb573b6a45d901fcf2cd
https://git.kernel.org/stable/c/9dbd84990394c51f5cee1e8871bb5ff8af5ed939