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().
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a462067d7c8e6953a733bf5ade8db947b1bb5449, < 5871761c5f0f20d6e98bf3b6bd7486d857589554; >= 145c89c441d27696961752bf51b323f347601bee, < 0c71d4c89559f72cec2592d078681a843bce570e; >= caf5ac93b3b5d5fac032fc11fbea680e115421b4, < 24b699bea7553fc0b98dad9d864befb6005ac7f1; >= 92028d7a31e55d53e41cff679156b9432cffcb36, < 5c17cfe155d21954b4c7e2a78fa771cebcd86725; >= 4a2933c88399c0ebc738db39bbce3ae89786d723, < d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53e; >= dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac, < 90642ee9eb581a13569b1c0bd57e85d962215273; >= 388d05f70f1ee0cac4a2068fd295072f1a44152a, < 0f000005da31f6947f843ce6b3e3a960540c6e00; >= 8a12f8836145ffe37e9c8733dce18c22fb668b66, < 41c44e1f3112d7265dae522c026399b2a42d19ef; >= 8a12f8836145ffe37e9c8733dce18c22fb668b66, < 2ad5692db72874f02b9ad551d26345437ea4f7f3; >= 4.19.187, < 4.19.189; >= 5.4.112, < 5.4.115; >= 5.10.30, < 5.10.33; >= 5.11.14, < 5.11.17 |
| Linux | Linux | 5.12 |
References
- https://git.kernel.org/stable/c/0c71d4c89559f72cec2592d078681a843bce570ePatch
- https://git.kernel.org/stable/c/0f000005da31f6947f843ce6b3e3a960540c6e00Patch
- https://git.kernel.org/stable/c/24b699bea7553fc0b98dad9d864befb6005ac7f1Patch
- https://git.kernel.org/stable/c/2ad5692db72874f02b9ad551d26345437ea4f7f3Patch
- https://git.kernel.org/stable/c/41c44e1f3112d7265dae522c026399b2a42d19efPatch
- https://git.kernel.org/stable/c/5871761c5f0f20d6e98bf3b6bd7486d857589554Patch
- https://git.kernel.org/stable/c/5c17cfe155d21954b4c7e2a78fa771cebcd86725Patch
- https://git.kernel.org/stable/c/90642ee9eb581a13569b1c0bd57e85d962215273Patch
- https://git.kernel.org/stable/c/d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53ePatch
- https://git.kernel.org/stable/c/0c71d4c89559f72cec2592d078681a843bce570ePatch
- https://git.kernel.org/stable/c/0f000005da31f6947f843ce6b3e3a960540c6e00Patch
- https://git.kernel.org/stable/c/24b699bea7553fc0b98dad9d864befb6005ac7f1Patch
- https://git.kernel.org/stable/c/2ad5692db72874f02b9ad551d26345437ea4f7f3Patch
- https://git.kernel.org/stable/c/41c44e1f3112d7265dae522c026399b2a42d19efPatch
- https://git.kernel.org/stable/c/5871761c5f0f20d6e98bf3b6bd7486d857589554Patch
- https://git.kernel.org/stable/c/5c17cfe155d21954b4c7e2a78fa771cebcd86725Patch
- https://git.kernel.org/stable/c/90642ee9eb581a13569b1c0bd57e85d962215273Patch
- https://git.kernel.org/stable/c/d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53ePatch
Timeline
- Published
- Feb 26, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified