HIGH🇬🇧 English

CVE-2026-53071

CVSS 8.8pub. 2026-06-24upd. 2026-07-22

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

oryginał EN
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Linux Kernel

    OS
    Linux
    5.7 – 5.10.258 (bez)5.11 – 5.15.209 (bez)5.16 – 6.1.175 (bez)6.2 – 6.6.141 (bez)6.7 – 6.12.91 (bez)6.13 – 6.18.33 (bez)6.19 – 7.0.10 (bez)
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ZWERYFIKUJ U PRODUCENTA
Brak jednoznacznych danych o patchu. Sprawdź referencje od producenta.
Tagi
Memory
CWE
Referencje

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