Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf The in04_last array in struct usx2ydev is declared as char[24], but in04_buf is allocated as sizeof(struct us428_ctls) which is 21 bytes. In i_usx2y_in04_int(), when ctl_snapshot_last == -2 (initialization path): memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last)); This copies 24 bytes from a 21-byte slab allocation, reading 3 bytes past the end of the source object. Introduce a USX2Y_IN04_SIZE constant defined as sizeof(struct us428_ctls) and use it consistently for the in04_last array, the in04_buf allocation, the URB transfer length, and the comparison loop, replacing the bare 24 and 21 literals throughout.
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
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 869fb83c072e884b80d93eab498e6040ffb010baaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d170cfbe38c8817ac787f605655546a6d343017daffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 229cab526580f82839ae8e4e379753c8cf16952eaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 381495b5b3da12d714e53d9d12d955b13fe26eacaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b5753bdfd909f7f095fb464d67802b5e52cbadbfaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 861111a14740e12c36d363e9830f8daa734279c9affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.15.222 to ≤ 5.15.*unaffected6.1.189 to ≤ 6.1.*unaffected6.6.158 to ≤ 6.6.*unaffected6.12.111 to ≤ 6.12.*unaffected6.18.53 to ≤ 6.18.*unaffected7.2.7 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57 ↗
- https://git.kernel.org/stable/c/869fb83c072e884b80d93eab498e6040ffb010ba ↗
- https://git.kernel.org/stable/c/d170cfbe38c8817ac787f605655546a6d343017d ↗
- https://git.kernel.org/stable/c/229cab526580f82839ae8e4e379753c8cf16952e ↗
- https://git.kernel.org/stable/c/381495b5b3da12d714e53d9d12d955b13fe26eac ↗
- https://git.kernel.org/stable/c/b5753bdfd909f7f095fb464d67802b5e52cbadbf ↗
- https://git.kernel.org/stable/c/861111a14740e12c36d363e9830f8daa734279c9 ↗