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TI-2026-45909 Aliases CVE-2026-64345GHSA-j7g9-89xm-vfhf

usb: gadget: f_printer: take kref only for successful open

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_printer: take kref only for successful open printer_open() returns -EBUSY when the character device is already open, but it increments dev->kref regardless of the return value. VFS does not call ->release() for a failed open, so every rejected second open permanently leaks one reference. Move kref_get() into the successful-open branch.

Why it matters now

EPSS 0.00123 2nd percentileScored 2026-11-07
Fix Fixed Linux (Linux): 4.5, 4.10, 4.15 +11

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.4.241 to before 4.5; 4.9.241 to before 4.10; 4.14.203 to before 4.15; 4.19.154 to before 4.20; 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.104.5, 4.10, 4.15, 4.20, 5.5, 5.9, 5.10Patch availableCNA
LinuxLinux5.10 and later5.10.261, 6.1.191, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2Patch availableCNA
  • Linux VendorLinux Affected 4.4.241 to before 4.5; 4.9.241 to before 4.10; 4.14.203 to before 4.15; 4.19.154 to before 4.20; 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10 Fixed in 4.5, 4.10, 4.15, 4.20, 5.5, 5.9, 5.10 Patch available CNA
  • Linux VendorLinux Affected 5.10 and later Fixed in 5.10.261, 6.1.191, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.4.241 to before 4.5; 4.9.241 to before 4.10; 4.14.203 to before 4.15; 4.19.154 to before 4.20; 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10.261; 5.11 to before 6.6.145; 6.7 to before 6.12.96; 6.13 to before 6.18.39; 6.19 to before 7.1.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.2:rc1:*:*:*:*:*:*7.2 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.2:rc2:*:*:*:*:*:*7.2 rc2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.4.241 to before 4.5; 4.9.241 to before 4.10; 4.14.203 to before 4.15; 4.19.154 to before 4.20; 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10.261; 5.11 to before 6.6.145; 6.7 to before 6.12.96; 6.13 to before 6.18.39; 6.19 to before 7.1.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.2:rc1:*:*:*:*:*:* Versions 7.2 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.2:rc2:*:*:*:*:*:* Versions 7.2 rc2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.5, 4.10, 4.15, 4.20, 5.5, 5.9, 5.10
  • Fix · CNA Linux (Linux) Fixed in 5.10.261, 6.1.191, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64345
  2. 2026-10-03 Alias added: GHSA-j7g9-89xm-vfhf
  3. 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@a12d81a9cc2a012a24ecb7f9ba076b9f7c179bd3 · CNA
  4. 2026-10-30 1 new reference · CNA

References

Patch 6

Other 1

  • 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