CVE-2021-46905
Published: Feb 25, 2024
Modified: May 23, 2026
Description
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().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected a462067d7c8e6953a733bf5ade8db947b1bb5449 - < 5871761c5f0f20d6e98bf3b6bd7486d857589554affected 145c89c441d27696961752bf51b323f347601bee - < 0c71d4c89559f72cec2592d078681a843bce570eaffected caf5ac93b3b5d5fac032fc11fbea680e115421b4 - < 24b699bea7553fc0b98dad9d864befb6005ac7f1affected 92028d7a31e55d53e41cff679156b9432cffcb36 - < 5c17cfe155d21954b4c7e2a78fa771cebcd86725affected 4a2933c88399c0ebc738db39bbce3ae89786d723 - < d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53e+8 more versions |
Linux | Linux | affected 5.12unaffected 0 - < 5.12unaffected 4.19.189 - <= 4.19.*unaffected 5.4.115 - <= 5.4.*unaffected 5.10.33 - <= 5.10.*+3 more versions |
References
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