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CVE-2024-38634

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

Description (CNA)

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]

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 44b38924135d2093e2ec1812969464845dd66dc9; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before ea9b35372b58ac2931bfc1d5bc25e839d1221e30; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before cc121e3722a0a2c8f716ef991e5425b180a5fb94; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 78dbda51bb4241b88a52d71620f06231a341f9ba; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 8296bb9e5925b6634259c5d4daee88f0cc0884ec; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 93df2fba6c7dfa9a2f08546ea9a5ca4728758458; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 865b30c8661924ee9145f442bf32cea549faa869; affected 7831d56b0a3544cbb6f82f76c34ca95e24d5b676 before 77ab53371a2066fdf9b895246505f5ef5a4b5d47
Linux / Linuxaffected 2.6.30; unaffected 0 before 2.6.30; unaffected 4.19.316 through 4.19.*; unaffected 5.4.278 through 5.4.*; unaffected 5.10.219 through 5.10.*; unaffected 5.15.161 through 5.15.*; unaffected 6.1.93 through 6.1.*; unaffected 6.6.33 through 6.6.*; unaffected 6.9.4 through 6.9.*; unaffected 6.10 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.