In the Linux kernel, the following vulnerability has been resolved:

staging: vme_user: Fix possible UAF in tsi148_dma_list_add

Smatch report warning as follows:

drivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn:
'&entry->list' not removed from list

In tsi148_dma_list_add(), the error path "goto err_dma" will not
remove entry->list from list->entries, but entry will be freed,
then list traversal may cause UAF.

Fix by removeing it from list->entries before free().

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-50384
• https://git.kernel.org/stable/c/1f5661388f43df3ac106ce93e67d8d22b16a78ff
• https://git.kernel.org/stable/c/357057ee55d3c99a5de5abe8150f7bca04f8e53b
• https://git.kernel.org/stable/c/51c0ad3b7c5b01f9314758335a13f157b05fa56d
• https://git.kernel.org/stable/c/5cc4eea715a3fcf4e516662f736dfee63979465f
• https://git.kernel.org/stable/c/5d2b286eb034af114f67d9967fc3fbc1829bb712
• https://git.kernel.org/stable/c/85db68fc901da52314ded80aace99f8b684c7815
• https://git.kernel.org/stable/c/a45ba33d398a821147d7e5f16ead7eb125e331e2
• https://git.kernel.org/stable/c/cf138759a7e92c75cfc1b7ba705e4108fe330edf
• https://git.kernel.org/stable/c/e6b0adff99edf246ba1f8d464530a0438cb1cbda