CVE-2026-53358

Enriched by CISA
 

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use chan timer to close channels in cleanup_listen() l2cap_chan_close() removes the channel from conn->chan_l, which must be done under conn->lock. cleanup_listen() runs under the parent sk_lock, so acquiring conn->lock would invert the established conn->lock -> chan->lock -> sk_lock order. Instead of calling l2cap_chan_close() directly, schedule l2cap_chan_timeout with delay 0 to close the channel asynchronously. The timeout handler already acquires conn->lock and chan->lock in the correct order. The timer is only armed when chan->conn is still set: if it is already NULL, l2cap_conn_del() has already processed this channel (l2cap_chan_del + l2cap_sock_teardown_cb + l2cap_sock_close_cb), so there is nothing left to do. If l2cap_conn_del() races in after the timer is armed, __clear_chan_timer() inside l2cap_chan_del() cancels it; if the timer has already fired, the handler returns harmlessly because chan->conn was cleared.
https://nvd.nist.gov/vuln/detail/CVE-2026-53358

Categories

No category defined

References


 

AFFECTED (from MITRE)

Vendor Product Versions
Linux Linux
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 3634cbdc2eb414b69ffa752ddbe5e0458518e321 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < e1c100e2d61bd8c718b7d91fe3e050780a9bf72d [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < deb8493a8fa599f6c95e2465b12bfdfb7f94a1d9 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 89dec92041717b027216e110599e4f6d6c921b79 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 50dfec218808b148ab4247b1858031b7a32015c5 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 859d3ace791ed878ae9ba5522c7844d960da8f88 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 7555fd885a0603f50e49a655850a1f2bd8a25398 [affected]
  • 3df91ea20e744344100b10ae69a17211fcf5b207 < 8c8e620467a7b51562dbcefbd1f09f288d7d710d [affected]
Linux Linux
  • 3.4 [affected]
  • < 3.4 [unaffected]
  • 5.10.259 ≤ 5.10.* [unaffected]
  • 5.15.210 ≤ 5.15.* [unaffected]
  • 6.1.176 ≤ 6.1.* [unaffected]
  • 6.6.143 ≤ 6.6.* [unaffected]
  • 6.12.93 ≤ 6.12.* [unaffected]
  • 6.18.35 ≤ 6.18.* [unaffected]
  • 7.0.12 ≤ 7.0.* [unaffected]
  • 7.1 ≤ * [unaffected]
© 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

CPE

cpe start end
Configuration 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 5.10.259
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 5.15.210
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 6.1.176
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 6.6.143
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 6.12.93
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 6.18.35
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 7.0.12
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 3.4 < 7.1

REMEDIATION


EXPLOITS

Exploit-db.com

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POC Github

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Other Nist (github, ...)

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CAPEC

Common Attack Pattern Enumerations and Classifications

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