CVE-2023-54220
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 490bf37eaabb0a857ed1ae8e75d8854e41662f1c < 66f3e55960698c874b0598277913b478ecd29573 | affected |
| Linux | Linux | c9e080c3005fd183c56ff8f4d75edb5da0765d2c < 720a297b334e85d34099e83d1f375b92c3efedd6 | affected |
| Linux | Linux | d5cd2928d31042a7c0a01464f9a8d95be736421d < b653289ca6460a6552c8590b75dfa84a0140a46b | affected |
| Linux | Linux | 2c86a1305c1406f45ea780d06953c484ea1d9e6e < bd70d0b28010d560a8be96b44fea86fe2ba016ae | affected |
| Linux | Linux | 1ba5594739d858e524ff0f398ee1ebfe0a8b9d41 < 18e27df4f2b4e257c317ba8076f31a888f6cc64b | affected |
| Linux | Linux | af4d6dbb1a92ea424ad1ba1d0c88c7fa2345d872 < 0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c | affected |
| Linux | Linux | 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 < 375806616f8c772c33d40e112530887b37c1a816 | affected |
| Linux | Linux | 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 < dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534 | affected |
| Linux | Linux | 8e596aed5f2f98cf3e6e98d6fe1d689f4a319308 | affected |
| Linux | Linux | 4.14.316 < 4.14.324 | affected |
| Linux | Linux | 4.19.284 < 4.19.293 | affected |
| Linux | Linux | 5.4.244 < 5.4.255 | affected |
| Linux | Linux | 5.10.181 < 5.10.192 | affected |
| Linux | Linux | 5.15.113 < 5.15.128 | affected |
| Linux | Linux | 6.1.30 < 6.1.47 | affected |
| Linux | Linux | 6.3.4 < 6.4 | affected |
| Linux | Linux | 6.4 | affected |
| Linux | Linux | 0 < 6.4 | unaffected |
| Linux | Linux | 4.14.324 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.293 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.255 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.192 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.128 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.47 <= 6.1.* | unaffected |
| Linux | Linux | 6.4.12 <= 6.4.* | unaffected |
| Linux | Linux | 6.5 <= * | unaffected |
Weaknesses
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
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