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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-49053

scsi: target: tcmu: Fix possible page UAF

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().

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

  • 141685a39151aea95eb56562d2953e919c6c73da to < d7c5d79e50be6e06b669141e3db1f977a0dd4e8eaffected
  • 141685a39151aea95eb56562d2953e919c6c73da to < e3e0e067d5b34e4a68e3cc55f8eebc413f56f8edaffected
  • 141685a39151aea95eb56562d2953e919c6c73da to < fb7a5115422fbd6a4d505e8844f1ef5529f10489affected
  • 141685a39151aea95eb56562d2953e919c6c73da to < aec36b98a1bbaa84bfd8299a306e4c12314af626affected
  • 141685a39151aea95eb56562d2953e919c6c73da to < b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322affected
  • 141685a39151aea95eb56562d2953e919c6c73da to < a9564d84ed9f6ee71017d062d0d2182154294a4baffected
  • 141685a39151aea95eb56562d2953e919c6c73da to < a6968f7a367f128d120447360734344d5a3d5336affected

Linux Linux

Default version status: affected

  • 4.12affected
  • 0 to < 4.12unaffected
  • 4.14.276 to ≤ 4.14.*unaffected
  • 4.19.239 to ≤ 4.19.*unaffected
  • 5.4.190 to ≤ 5.4.*unaffected
  • 5.10.112 to ≤ 5.10.*unaffected
  • 5.15.35 to ≤ 5.15.*unaffected
  • 5.17.4 to ≤ 5.17.*unaffected
  • 5.18 to ≤ *unaffected

References