CVE-2022-50229

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().

Reserved 2025-06-18 | Published 2025-06-18 | Updated 2025-06-18 | Assigner Linux

Product status

Default status
unaffected

b47a22290d581277be70e8a597824a4985d39e83 before a718eba7e458e2f40531be3c6b6a0028ca7fcace
affected

b47a22290d581277be70e8a597824a4985d39e83 before 4fc41f7ebb7efca282f1740ea934d16f33c1d109
affected

b47a22290d581277be70e8a597824a4985d39e83 before 5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0
affected

b47a22290d581277be70e8a597824a4985d39e83 before 05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db
affected

b47a22290d581277be70e8a597824a4985d39e83 before 348620464a5c127399ac09b266f494f393661952
affected

b47a22290d581277be70e8a597824a4985d39e83 before 64ca7f50ad96c2c65ae390b954925a36eabe04aa
affected

b47a22290d581277be70e8a597824a4985d39e83 before 1d6a246cf97c380f2da76591f03019dd9c9599c3
affected

b47a22290d581277be70e8a597824a4985d39e83 before b0d4af0a4763ddc02344789ef2a281c494bc330d
affected

b47a22290d581277be70e8a597824a4985d39e83 before ffb2759df7efbc00187bfd9d1072434a13a54139
affected

Default status
affected

3.16
affected

Any version before 3.16
unaffected

4.9.326
unaffected

4.14.291
unaffected

4.19.256
unaffected

5.4.211
unaffected

5.10.137
unaffected

5.15.61
unaffected

5.18.18
unaffected

5.19.2
unaffected

6.0
unaffected

References

git.kernel.org/...c/a718eba7e458e2f40531be3c6b6a0028ca7fcace

git.kernel.org/...c/4fc41f7ebb7efca282f1740ea934d16f33c1d109

git.kernel.org/...c/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0

git.kernel.org/...c/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db

git.kernel.org/...c/348620464a5c127399ac09b266f494f393661952

git.kernel.org/...c/64ca7f50ad96c2c65ae390b954925a36eabe04aa

git.kernel.org/...c/1d6a246cf97c380f2da76591f03019dd9c9599c3

git.kernel.org/...c/b0d4af0a4763ddc02344789ef2a281c494bc330d

git.kernel.org/...c/ffb2759df7efbc00187bfd9d1072434a13a54139

cve.org (CVE-2022-50229)

nvd.nist.gov (CVE-2022-50229)

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