CVE-2024-50153 (GCVE-0-2024-50153)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2025-11-03 22:26
VLAI?
Title
scsi: target: core: Fix null-ptr-deref in target_alloc_device()
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().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 008b936bbde3e87a611b3828a0d5d2a4f99026a0 , < 8c1e6717f60d31f8af3937c23c4f1498529584e1 (git)
Affected: 1526d9f10c6184031e42afad0adbdde1213e8ad1 , < 39e02fa90323243187c91bb3e8f2f5f6a9aacfc7 (git)
Affected: 1526d9f10c6184031e42afad0adbdde1213e8ad1 , < 895ab729425ef9bf3b6d2f8d0853abe64896f314 (git)
Affected: 1526d9f10c6184031e42afad0adbdde1213e8ad1 , < b80e9bc85bd9af378e7eac83e15dd129557bbdb6 (git)
Affected: 1526d9f10c6184031e42afad0adbdde1213e8ad1 , < 14a6a2adb440e4ae97bee73b2360946bd033dadd (git)
Affected: 1526d9f10c6184031e42afad0adbdde1213e8ad1 , < fca6caeb4a61d240f031914413fcc69534f6dc03 (git)
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    Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.10.229 , ≤ 5.10.* (semver)
Unaffected: 5.15.170 , ≤ 5.15.* (semver)
Unaffected: 6.1.115 , ≤ 6.1.* (semver)
Unaffected: 6.6.59 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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