Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-49905

net/smc: Fix possible leaked pernet namespace in smc_init()

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fix possible leaked pernet namespace in smc_init() In smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called without any error handling. If it fails, registering of &smc_net_ops won't be reverted. And if smc_nl_init() fails, &smc_net_stat_ops itself won't be reverted. This leaves wild ops in subsystem linkedlist and when another module tries to call register_pernet_operations() it triggers page fault: BUG: unable to handle page fault for address: fffffbfff81b964c RIP: 0010:register_pernet_operations+0x1b9/0x5f0 Call Trace: <TASK> register_pernet_subsys+0x29/0x40 ebtables_init+0x58/0x1000 [ebtables] ...

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

  • 194730a9beb52d2b030ea45e12d94868d4a0e6fd to < 61defd6450a9ef4a1487090449999b0fd83518efaffected
  • 194730a9beb52d2b030ea45e12d94868d4a0e6fd to < c97daf836f7caf81d3144b8cd2b2a51f9bc3bd09affected
  • 194730a9beb52d2b030ea45e12d94868d4a0e6fd to < 62ff373da2534534c55debe6c724c7fe14adb97faffected

Linux Linux

Default version status: affected

  • 5.14affected
  • 0 to < 5.14unaffected
  • 5.15.78 to ≤ 5.15.*unaffected
  • 6.0.8 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References