CVE-2022-50229
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < a718eba7e458e2f40531be3c6b6a0028ca7fcace | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 4fc41f7ebb7efca282f1740ea934d16f33c1d109 | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0 | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 348620464a5c127399ac09b266f494f393661952 | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 64ca7f50ad96c2c65ae390b954925a36eabe04aa | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < 1d6a246cf97c380f2da76591f03019dd9c9599c3 | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < b0d4af0a4763ddc02344789ef2a281c494bc330d | affected |
| Linux | Linux | b47a22290d581277be70e8a597824a4985d39e83 < ffb2759df7efbc00187bfd9d1072434a13a54139 | affected |
| Linux | Linux | 3.16 | affected |
| Linux | Linux | 0 < 3.16 | unaffected |
| Linux | Linux | 4.9.326 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.291 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.256 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.211 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.137 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.61 <= 5.15.* | unaffected |
| Linux | Linux | 5.18.18 <= 5.18.* | unaffected |
| Linux | Linux | 5.19.2 <= 5.19.* | unaffected |
| Linux | Linux | 6.0 <= * | unaffected |
Weaknesses
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
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