Description
In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.
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
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 6680af5be9f08d830567e9118f76d3e64684db8faffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 6606e2404ee9e20a3ae5b42fc3660d41b739ed3eaffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 620b983589e0223876bf1463b01100a9c67b56baaffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 86ba65e5357bfbb6c082f68b265a292ee1bdde1daffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < ca4ce92e3ec9fd3c7c936b912b95c53331d5159caffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 423350af9e27f005611bd881b1df2cab66de943daffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 77eeb4732135c18c2fdfab80839645b393f3e774affectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < 7b93ab60fe9ed04be0ff155bc30ad39dea23e22baffectedfd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf to < eed9496a0501357aa326ddd6b71408189ed872ebaffected
Linux Linux
Default version status: affected
2.6.31affected0 to < 2.6.31unaffected4.14.315 to ≤ 4.14.*unaffected4.19.283 to ≤ 4.19.*unaffected5.4.243 to ≤ 5.4.*unaffected5.10.211 to ≤ 5.10.*unaffected5.15.111 to ≤ 5.15.*unaffected6.1.28 to ≤ 6.1.*unaffected6.2.15 to ≤ 6.2.*unaffected6.3.2 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/6680af5be9f08d830567e9118f76d3e64684db8f ↗
- https://git.kernel.org/stable/c/6606e2404ee9e20a3ae5b42fc3660d41b739ed3e ↗
- https://git.kernel.org/stable/c/620b983589e0223876bf1463b01100a9c67b56ba ↗
- https://git.kernel.org/stable/c/86ba65e5357bfbb6c082f68b265a292ee1bdde1d ↗
- https://git.kernel.org/stable/c/ca4ce92e3ec9fd3c7c936b912b95c53331d5159c ↗
- https://git.kernel.org/stable/c/423350af9e27f005611bd881b1df2cab66de943d ↗
- https://git.kernel.org/stable/c/77eeb4732135c18c2fdfab80839645b393f3e774 ↗
- https://git.kernel.org/stable/c/7b93ab60fe9ed04be0ff155bc30ad39dea23e22b ↗
- https://git.kernel.org/stable/c/eed9496a0501357aa326ddd6b71408189ed872eb ↗