CVE-2022-50384

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 5cc4eea715a3fcf4e516662f736dfee63979465faffected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 51c0ad3b7c5b01f9314758335a13f157b05fa56daffected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < e6b0adff99edf246ba1f8d464530a0438cb1cbdaaffected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < a45ba33d398a821147d7e5f16ead7eb125e331e2affected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 5d2b286eb034af114f67d9967fc3fbc1829bb712affected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 1f5661388f43df3ac106ce93e67d8d22b16a78ffaffected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < cf138759a7e92c75cfc1b7ba705e4108fe330edfaffected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 85db68fc901da52314ded80aace99f8b684c7815affected
LinuxLinuxb2383c90a9d691201b9aee557776694cde86a935 < 357057ee55d3c99a5de5abe8150f7bca04f8e53baffected
LinuxLinux4.2affected
LinuxLinux0 < 4.2unaffected
LinuxLinux4.9.337 <= 4.9.*unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References