Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk. The value MUX handler it deleted used >= there, and the snd_soc_put_enum_double() in soc-ops.c still does. Only adav80x pairs a value table with two shifts, and its second channel looks accidental, but the control does report two values. Writing three into it reads off the end of adav80x_mux_values. The core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which defaults off.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 57ab955bde747327fb2042516ae1b7192c30e881; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 806fa4e1f2bf73c54bc4b6360790ecc69d095ca5; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 496081b4edc1f6e662418831c5b14cddd8d7920c; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before faf539af1a595a26e5a081a4e512caee2bc2f4c5; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 32fc048391112559c34cb88d13594546939a4cd6; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 10a36512c21f861a03fba461a7ead09023df9c1b; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 55126ef66298e43c69f192acebae8c7cc0022cf6; affected 3727b4968453dbab8fe18f979d67285eb6b66801 before 14511c9b54ceeeef487409d73947c89ee8563590 |
| Linux / Linux | affected 3.15; unaffected 0 before 3.15; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881
- https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5
- https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c
- https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5
- https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6
- https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b
- https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6
- https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590