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TI-2026-64488 Aliases CVE-2026-98090GHSA-j9r6-v9mw-fjh8

btrfs: restore active device pointers after failed sprout

Priority LOW 24CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · NVD. 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: btrfs: restore active device pointers after failed sprout btrfs_init_new_device() switches latest_dev and possibly s_bdev from the seed device to the new sprout device before creating the first writable chunks. If chunk creation or the subsequent sprout setup fails, the error path releases the new device without switching those pointers back. btrfs_show_devname() can then dereference the freed latest_dev and crash. Restore the active device pointers to the latest seed device before removing and releasing the failed sprout device.

Why it matters now

EPSS 0.00123 2nd percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.222, 6.1.189, 6.6.158 +4Red Hat: 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.15.11 to before 5.15.2225.15.222Patch availableCNA
LinuxLinux5.16 and later5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3Patch availableCNA
  • Linux VendorLinux Affected 5.15.11 to before 5.15.222 Fixed in 5.15.222 Patch available CNA
  • Linux VendorLinux Affected 5.16 and later Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.13 to before 5.15.222; 5.16 to before 6.1.189; 6.2 to before 6.6.158; 6.7 to before 6.12.111; 6.13 to before 6.18.53; 6.19 to before 7.2.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:*7.3 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.13 to before 5.15.222; 5.16 to before 6.1.189; 6.2 to before 6.6.158; 6.7 to before 6.12.111; 6.13 to before 6.18.53; 6.19 to before 7.2.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:* Versions 7.3 rc1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.15.222
  • Fix · CNA Linux (Linux) Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Not affected: 5 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-98090
  2. 2026-10-03 Alias added: GHSA-j9r6-v9mw-fjh8
  3. 2026-10-03 Fix available: Linux/Linux@0a0ee38ad6324ac1603079bb785f784191576bd5, Linux/Linux@46863a9f93186e620c70584f91c8d5d95da83eff, Linux/Linux@49179f13c04735c55fd0f43b03696c015b067137 +3 · CNA
  4. 2026-10-03 3 new references · CNA
  5. 2026-10-19 Fix available: Linux/[email protected] · CNA
  6. 2026-10-23 Affected versions changed · Red Hat
  7. 2026-10-23 CVSS score added · Red Hat
  8. 2026-10-23 CVSS score added · NVD
  9. 2026-10-23 Weakness changed · NVD
  10. 2026-11-06 Affected versions changed · Red Hat

References

Patch 7

  • 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