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TI-2024-33306 Aliases CVE-2024-49855GHSA-x6h6-973g-q656

nbd: fix race between timeout and normal completion

Priority MEDIUM 42CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00463 40th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.18, 5.19, 6.1.113 +4Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.17.15 to before 5.18; 5.18.4 to before 5.195.18, 5.19Patch availableCNA
LinuxLinux5.19 and later6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12Patch availableCNA
  • Linux VendorLinux Affected 5.17.15 to before 5.18; 5.18.4 to before 5.19 Fixed in 5.18, 5.19 Patch available CNA
  • Linux VendorLinux Affected 5.19 and later Fixed in 6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.18.4 to before 5.19; 5.19 to before 6.1.113; 6.2 to before 6.6.54; 6.7 to before 6.10.13; 6.11 to before 6.11.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17.15:*:*:*:*:*:*:*5.17.15VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.18.4 to before 5.19; 5.19 to before 6.1.113; 6.2 to before 6.6.54; 6.7 to before 6.10.13; 6.11 to before 6.11.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17.15:*:*:*:*:*:*:* Versions 5.17.15 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.18, 5.19
  • Fix · CNA Linux (Linux) Fixed in 6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-49855
  2. 2026-10-03 Alias added: GHSA-x6h6-973g-q656
  3. 2026-10-29 Affected versions changed · Red Hat

References

Patch 5

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences