Description
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().
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 008b936bbde3e87a611b3828a0d5d2a4f99026a0, < 8c1e6717f60d31f8af3937c23c4f1498529584e1; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 39e02fa90323243187c91bb3e8f2f5f6a9aacfc7; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 895ab729425ef9bf3b6d2f8d0853abe64896f314; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < b80e9bc85bd9af378e7eac83e15dd129557bbdb6; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 14a6a2adb440e4ae97bee73b2360946bd033dadd; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < fca6caeb4a61d240f031914413fcc69534f6dc03; >= 5.10.180, < 5.10.229 |
| Linux | Linux | 5.11 |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | < V1.1.1 |
References
- https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033daddPatch
- https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7Patch
- https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314Patch
- https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1Patch
- https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6Patch
- https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Timeline
- Published
- Nov 7, 2024
- Last modified
- Oct 15, 2026
- NVD status
- Modified