5.5

CVE-2024-38634

serial: max3100: Lock port->lock when calling uart_handle_cts_change()

In the Linux kernel, the following vulnerability has been resolved:

serial: max3100: Lock port->lock when calling uart_handle_cts_change()

uart_handle_cts_change() has to be called with port lock taken,
Since we run it in a separate work, the lock may not be taken at
the time of running. Make sure that it's taken by explicitly doing
that. Without it we got a splat:

  WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0
  ...
  Workqueue: max3100-0 max3100_work [max3100]
  RIP: 0010:uart_handle_cts_change+0xa6/0xb0
  ...
   max3100_handlerx+0xc5/0x110 [max3100]
   max3100_work+0x12a/0x340 [max3100]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.31 < 4.19.316
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.278
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.219
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.161
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.93
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.33
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.4
Linux ≫ Linux Kernel Version2.6.30 Update-
Linux ≫ Linux Kernel Version2.6.30 Updaterc2
Linux ≫ Linux Kernel Version2.6.30 Updaterc3
Linux ≫ Linux Kernel Version2.6.30 Updaterc4
Linux ≫ Linux Kernel Version2.6.30 Updaterc5
Linux ≫ Linux Kernel Version2.6.30 Updaterc6
Linux ≫ Linux Kernel Version2.6.30 Updaterc7
Linux ≫ Linux Kernel Version2.6.30 Updaterc8
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.086
CVSS Metriken
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-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
https://git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9
Patch
https://git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47
Patch
https://git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9ba
Patch
https://git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ec
Patch
https://git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869
Patch
https://git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458
Patch
https://git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94
Patch
https://git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30
Patch