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().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
a462067d7c8e6953a733bf5ade8db947b1bb5449 to < 5871761c5f0f20d6e98bf3b6bd7486d857589554affected145c89c441d27696961752bf51b323f347601bee to < 0c71d4c89559f72cec2592d078681a843bce570eaffectedcaf5ac93b3b5d5fac032fc11fbea680e115421b4 to < 24b699bea7553fc0b98dad9d864befb6005ac7f1affected92028d7a31e55d53e41cff679156b9432cffcb36 to < 5c17cfe155d21954b4c7e2a78fa771cebcd86725affected4a2933c88399c0ebc738db39bbce3ae89786d723 to < d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53eaffecteddc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac to < 90642ee9eb581a13569b1c0bd57e85d962215273affected388d05f70f1ee0cac4a2068fd295072f1a44152a to < 0f000005da31f6947f843ce6b3e3a960540c6e00affected8a12f8836145ffe37e9c8733dce18c22fb668b66 to < 41c44e1f3112d7265dae522c026399b2a42d19efaffected8a12f8836145ffe37e9c8733dce18c22fb668b66 to < 2ad5692db72874f02b9ad551d26345437ea4f7f3affected4.19.187 to < 4.19.189affected5.4.112 to < 5.4.115affected5.10.30 to < 5.10.33affected5.11.14 to < 5.11.17affected
Linux Linux
Default version status: affected
5.12affected0 to < 5.12unaffected4.19.189 to ≤ 4.19.*unaffected5.4.115 to ≤ 5.4.*unaffected5.10.33 to ≤ 5.10.*unaffected5.11.17 to ≤ 5.11.*unaffected5.12.1 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5871761c5f0f20d6e98bf3b6bd7486d857589554 ↗
- https://git.kernel.org/stable/c/0c71d4c89559f72cec2592d078681a843bce570e ↗
- https://git.kernel.org/stable/c/24b699bea7553fc0b98dad9d864befb6005ac7f1 ↗
- https://git.kernel.org/stable/c/5c17cfe155d21954b4c7e2a78fa771cebcd86725 ↗
- https://git.kernel.org/stable/c/d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53e ↗
- https://git.kernel.org/stable/c/90642ee9eb581a13569b1c0bd57e85d962215273 ↗
- https://git.kernel.org/stable/c/0f000005da31f6947f843ce6b3e3a960540c6e00 ↗
- https://git.kernel.org/stable/c/41c44e1f3112d7265dae522c026399b2a42d19ef ↗
- https://git.kernel.org/stable/c/2ad5692db72874f02b9ad551d26345437ea4f7f3 ↗