Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix a UAF bug on the error path of probing When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb().
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
b47a22290d581277be70e8a597824a4985d39e83 to < a718eba7e458e2f40531be3c6b6a0028ca7fcaceaffectedb47a22290d581277be70e8a597824a4985d39e83 to < 4fc41f7ebb7efca282f1740ea934d16f33c1d109affectedb47a22290d581277be70e8a597824a4985d39e83 to < 5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0affectedb47a22290d581277be70e8a597824a4985d39e83 to < 05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24dbaffectedb47a22290d581277be70e8a597824a4985d39e83 to < 348620464a5c127399ac09b266f494f393661952affectedb47a22290d581277be70e8a597824a4985d39e83 to < 64ca7f50ad96c2c65ae390b954925a36eabe04aaaffectedb47a22290d581277be70e8a597824a4985d39e83 to < 1d6a246cf97c380f2da76591f03019dd9c9599c3affectedb47a22290d581277be70e8a597824a4985d39e83 to < b0d4af0a4763ddc02344789ef2a281c494bc330daffectedb47a22290d581277be70e8a597824a4985d39e83 to < ffb2759df7efbc00187bfd9d1072434a13a54139affected
Linux Linux
Default version status: affected
3.16affected0 to < 3.16unaffected4.9.326 to ≤ 4.9.*unaffected4.14.291 to ≤ 4.14.*unaffected4.19.256 to ≤ 4.19.*unaffected5.4.211 to ≤ 5.4.*unaffected5.10.137 to ≤ 5.10.*unaffected5.15.61 to ≤ 5.15.*unaffected5.18.18 to ≤ 5.18.*unaffected5.19.2 to ≤ 5.19.*unaffected6.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/a718eba7e458e2f40531be3c6b6a0028ca7fcace ↗
- https://git.kernel.org/stable/c/4fc41f7ebb7efca282f1740ea934d16f33c1d109 ↗
- https://git.kernel.org/stable/c/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0 ↗
- https://git.kernel.org/stable/c/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db ↗
- https://git.kernel.org/stable/c/348620464a5c127399ac09b266f494f393661952 ↗
- https://git.kernel.org/stable/c/64ca7f50ad96c2c65ae390b954925a36eabe04aa ↗
- https://git.kernel.org/stable/c/1d6a246cf97c380f2da76591f03019dd9c9599c3 ↗
- https://git.kernel.org/stable/c/b0d4af0a4763ddc02344789ef2a281c494bc330d ↗
- https://git.kernel.org/stable/c/ffb2759df7efbc00187bfd9d1072434a13a54139 ↗