CVE-2024-38634
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…
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
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]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9Patch
- https://git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47Patch
- https://git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9baPatch
- https://git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ecPatch
- https://git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869Patch
- https://git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458Patch
- https://git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94Patch
- https://git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30Patch
- https://git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9Patch
- https://git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47Patch
- https://git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9baPatch
- https://git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ecPatch
- https://git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869Patch
- https://git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458Patch
- https://git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94Patch
- https://git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.