Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix oops for port->pm on uart_change_pm() Unloading a hardware specific 8250 driver can produce error "Unable to handle kernel paging request at virtual address" about ten seconds after unloading the driver. This happens on uart_hangup() calling uart_change_pm(). Turns out commit 04e82793f068 ("serial: 8250: Reinit port->pm on port specific driver unbind") was only a partial fix. If the hardware specific driver has initialized port->pm function, we need to clear port->pm too. Just reinitializing port->ops does not do this. Otherwise serial8250_pm() will call port->pm() instead of serial8250_do_pm().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 490bf37eaabb0a857ed1ae8e75d8854e41662f1c before 66f3e55960698c874b0598277913b478ecd29573; affected c9e080c3005fd183c56ff8f4d75edb5da0765d2c before 720a297b334e85d34099e83d1f375b92c3efedd6; affected d5cd2928d31042a7c0a01464f9a8d95be736421d before b653289ca6460a6552c8590b75dfa84a0140a46b; affected 2c86a1305c1406f45ea780d06953c484ea1d9e6e before bd70d0b28010d560a8be96b44fea86fe2ba016ae; affected 1ba5594739d858e524ff0f398ee1ebfe0a8b9d41 before 18e27df4f2b4e257c317ba8076f31a888f6cc64b; affected af4d6dbb1a92ea424ad1ba1d0c88c7fa2345d872 before 0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c; affected 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 before 375806616f8c772c33d40e112530887b37c1a816; affected 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 before dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534; affected 8e596aed5f2f98cf3e6e98d6fe1d689f4a319308; affected 4.14.316 before 4.14.324; affected 4.19.284 before 4.19.293; affected 5.4.244 before 5.4.255; affected 5.10.181 before 5.10.192; affected 5.15.113 before 5.15.128; affected 6.1.30 before 6.1.47; affected 6.3.4 before 6.4 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 4.14.324 through 4.14.*; unaffected 4.19.293 through 4.19.*; unaffected 5.4.255 through 5.4.*; unaffected 5.10.192 through 5.10.*; unaffected 5.15.128 through 5.15.*; unaffected 6.1.47 through 6.1.*; unaffected 6.4.12 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/66f3e55960698c874b0598277913b478ecd29573
- https://git.kernel.org/stable/c/720a297b334e85d34099e83d1f375b92c3efedd6
- https://git.kernel.org/stable/c/b653289ca6460a6552c8590b75dfa84a0140a46b
- https://git.kernel.org/stable/c/bd70d0b28010d560a8be96b44fea86fe2ba016ae
- https://git.kernel.org/stable/c/18e27df4f2b4e257c317ba8076f31a888f6cc64b
- https://git.kernel.org/stable/c/0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c
- https://git.kernel.org/stable/c/375806616f8c772c33d40e112530887b37c1a816
- https://git.kernel.org/stable/c/dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534
ADP enrichment
No English description supplied.
No references supplied.