5.5
CVE-2021-46905
- EPSS 0.26%
- Veröffentlicht 26.02.2024 16:27:45
- Zuletzt bearbeitet 21.11.2024 06:34:54
- Quelle 416baaa9-dc9f-4396-8d5f-8c081f
- CVE-Watchlists
- Unerledigt
net: hso: fix NULL-deref on disconnect regression
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().Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.19.189
Linux ≫ Linux Kernel Version >= 4.20.0 < 5.4.115
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.10.33
Linux ≫ Linux Kernel Version >= 5.11.0 < 5.11.17
Linux ≫ Linux Kernel Version5.12 Update-
Linux ≫ Linux Kernel Version5.12 Updaterc1
Linux ≫ Linux Kernel Version5.12 Updaterc2
Linux ≫ Linux Kernel Version5.12 Updaterc3
Linux ≫ Linux Kernel Version5.12 Updaterc4
Linux ≫ Linux Kernel Version5.12 Updaterc5
Linux ≫ Linux Kernel Version5.12 Updaterc6
Linux ≫ Linux Kernel Version5.12 Updaterc7
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Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.26% | 0.172 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
CWE-476 NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
https://git.kernel.org/stable/c/0c71d4c89559f72cec2592d078681a843bce570e
https://git.kernel.org/stable/c/0f000005da31f6947f843ce6b3e3a960540c6e00
https://git.kernel.org/stable/c/24b699bea7553fc0b98dad9d864befb6005ac7f1
https://git.kernel.org/stable/c/2ad5692db72874f02b9ad551d26345437ea4f7f3
https://git.kernel.org/stable/c/41c44e1f3112d7265dae522c026399b2a42d19ef
https://git.kernel.org/stable/c/5871761c5f0f20d6e98bf3b6bd7486d857589554
https://git.kernel.org/stable/c/5c17cfe155d21954b4c7e2a78fa771cebcd86725
https://git.kernel.org/stable/c/90642ee9eb581a13569b1c0bd57e85d962215273
https://git.kernel.org/stable/c/d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53e