can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure es58x_read_bulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown. However, if usb_submit_urb() fails, the callback unanchors the URB and then returns directly. This skips the existing free_urb path, so the coherent transfer buffer allocated with usb_alloc_coherent() is not released. Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15.203 to before 5.15.216; 6.1.167 to before 6.1.183; 6.6.130 to before 6.6.151; 6.12.77 to before 6.12.103; 6.18.17 to before 6.18.44; 6.19.7 to before 6.20 | 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 6.20 | Patch available | CNA |
| Linux | Linux | 7.0 and later | 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8, 7.2 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.203 to before 5.15.216; 6.1.167 to before 6.1.183; 6.6.130 to before 6.6.151; 6.12.77 to before 6.12.103; 6.18.17 to before 6.18.44; 6.19.7 to before 6.20 Fixed in 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 6.20 Patch available CNA
- Linux VendorLinux Affected 7.0 and later Fixed in 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8, 7.2 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 6.20
- Fix · CNA Linux (Linux) Fixed in 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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
- 2026-10-02 Threatist record created from CVE-2026-74459
- 2026-10-03 Alias added: GHSA-5m9p-vm8m-7vmc
References
Other 7
- https://git.kernel.org/stable/c/c7ddf119544eea2d8409e12471c3f9f36ca02e3f
- https://git.kernel.org/stable/c/21da1a374769751546cc131e58a4d8bd968f57b2
- https://git.kernel.org/stable/c/0ef136ba052101243ba117a1aca6f4a4c3a81142
- https://git.kernel.org/stable/c/b85e5c310382803d27adf6fe6554d4208bc8951c
- https://git.kernel.org/stable/c/c311f17c261fd375ddf5755f2ebe1f022c19c5b0
- https://git.kernel.org/stable/c/19c6c8c6cd5dd14fab5fcd744584812a57cbb78d
- https://git.kernel.org/stable/c/7a0cf2b2497c757c3cb1286eddf2986abb0d387b
More Linux vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel 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
Sources
- CVE-2026-74459 · CVE Program
- CVE-2026-74459 · NVD
- FIRST EPSS
- GHSA-5m9p-vm8m-7vmc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-74459 · Red Hat security data · CC BY 4.0
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