5.5

CVE-2024-50153

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

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.170
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.115
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.59
Linux ≫ Linux Kernel Version >= 6.7 < 6.11.6
Linux ≫ Linux Kernel Version5.10.180
Linux ≫ Linux Kernel Version6.12 Updaterc1
Linux ≫ Linux Kernel Version6.12 Updaterc2
Linux ≫ Linux Kernel Version6.12 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.168
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd
Patch
https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7
Patch
https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314
Patch
https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1
Patch
https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6
Patch
https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html