Description
In the Linux kernel, the following vulnerability has been resolved: serial: 8250_port: Check IRQ data before use In case the leaf driver wants to use IRQ polling (irq = 0) and IIR register shows that an interrupt happened in the 8250 hardware the IRQ data can be NULL. In such a case we need to skip the wake event as we came to this path from the timer interrupt and quite likely system is already awake. Without this fix we have got an Oops: serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A ... BUG: kernel NULL pointer dereference, address: 0000000000000010 RIP: 0010:serial8250_handle_irq+0x7c/0x240 Call Trace: ? serial8250_handle_irq+0x7c/0x240 ? __pfx_serial8250_timeout+0x10/0x10
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
edfe57aedff4ecf3606533aabf8ecf7676c3c5d9 to < ee5732caaffba3a37e753fdb89b4958db9a61847affected0bd49a043c7984c93c2a0af41222fb71c3986a4e to < c334650150c29234b0923476f51573ae1b2f252aaffected572d48361aa0a6e6f16c1470e5407de183493d0c to < bf3c728e3692cc6d998874f0f27d433117348742affectedd5d628fea5f6181809a9d61b04de6ade53277684 to < e14afa4450cb7e4cf93e993a765801203d41d014affected424cf29296354d7b9c6c038aaa7bb71782100851 to < 2b837f13a818f96304736453ac53b66a70aaa4f2affected727e92fe13e81c6088a88d83e466b2b1b553c4e3 to < e14f68a48fd445a083ac0750fafcb064df5f18f7affected0ba9e3a13c6adfa99e32b2576d20820ab10ad48a to < 3345cc5f02f1fb4c4dcb114706f2210d879ab933affected0ba9e3a13c6adfa99e32b2576d20820ab10ad48a to < cce7fc8b29961b64fadb1ce398dc5ff32a79643baffectedd7c6aa39eb041e2a6a53106104200d11e2acc87faffectedf5fd2fd999b364801e9790c6f69f3fe3f40ed60faffected4.14.315 to < 4.14.327affected4.19.283 to < 4.19.296affected5.4.243 to < 5.4.258affected5.10.180 to < 5.10.198affected5.15.111 to < 5.15.134affected6.1.28 to < 6.1.56affected6.2.15 to < 6.3affected6.3.2 to < 6.4affected
Linux Linux
Default version status: affected
6.4affected0 to < 6.4unaffected4.14.327 to ≤ 4.14.*unaffected4.19.296 to ≤ 4.19.*unaffected5.4.258 to ≤ 5.4.*unaffected5.10.198 to ≤ 5.10.*unaffected5.15.134 to ≤ 5.15.*unaffected6.1.56 to ≤ 6.1.*unaffected6.5.6 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847 ↗
- https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252a ↗
- https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742 ↗
- https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014 ↗
- https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2 ↗
- https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7 ↗
- https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933 ↗
- https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643b ↗