CVE-2024-50153

Summary

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

scsi: target: core: Fix null-ptr-deref in target_alloc_device()

There is a null-ptr-deref issue reported by KASAN:

BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod] … kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 … entry_SYSCALL_64_after_hwframe+0x76/0x7e

In target_alloc_device(), if allocing memory for dev queues fails, then dev will be freed by dev->transport->free_device(), but dev->transport is not initialized at that time, which will lead to a null pointer reference problem.

Fixing this bug by freeing dev with hba->backend->ops->free_device().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux008b936bbde3e87a611b3828a0d5d2a4f99026a0 < 8c1e6717f60d31f8af3937c23c4f1498529584e1affected
LinuxLinux1526d9f10c6184031e42afad0adbdde1213e8ad1 < 39e02fa90323243187c91bb3e8f2f5f6a9aacfc7affected
LinuxLinux1526d9f10c6184031e42afad0adbdde1213e8ad1 < 895ab729425ef9bf3b6d2f8d0853abe64896f314affected
LinuxLinux1526d9f10c6184031e42afad0adbdde1213e8ad1 < b80e9bc85bd9af378e7eac83e15dd129557bbdb6affected
LinuxLinux1526d9f10c6184031e42afad0adbdde1213e8ad1 < 14a6a2adb440e4ae97bee73b2360946bd033daddaffected
LinuxLinux1526d9f10c6184031e42afad0adbdde1213e8ad1 < fca6caeb4a61d240f031914413fcc69534f6dc03affected
LinuxLinux5.10.180 < 5.10.229affected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux5.10.229 <= 5.10.*unaffected
LinuxLinux5.15.170 <= 5.15.*unaffected
LinuxLinux6.1.115 <= 6.1.*unaffected
LinuxLinux6.6.59 <= 6.6.*unaffected
LinuxLinux6.11.6 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

Additional References

References