CVE-2021-46905 (GCVE-0-2021-46905)
Vulnerability from cvelistv5
Published
2024-02-25 14:03
Modified
2026-05-23 15:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hso: fix NULL-deref on disconnect regression Commit 8a12f8836145 ("net: hso: fix null-ptr-deref during tty device unregistration") fixed the racy minor allocation reported by syzbot, but introduced an unconditional NULL-pointer dereference on every disconnect instead. Specifically, the serial device table must no longer be accessed after the minor has been released by hso_serial_tty_unregister().
References
Impacted products
Vendor Product Version
Linux Linux Version: a462067d7c8e6953a733bf5ade8db947b1bb5449
Version: 145c89c441d27696961752bf51b323f347601bee
Version: caf5ac93b3b5d5fac032fc11fbea680e115421b4
Version: 92028d7a31e55d53e41cff679156b9432cffcb36
Version: 4a2933c88399c0ebc738db39bbce3ae89786d723
Version: dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac
Version: 388d05f70f1ee0cac4a2068fd295072f1a44152a
Version: 8a12f8836145ffe37e9c8733dce18c22fb668b66
Version: 8a12f8836145ffe37e9c8733dce18c22fb668b66
Version: 4.19.187   ≤
Version: 5.4.112   ≤
Version: 5.10.30   ≤
Version: 5.11.14   ≤
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