Answer in brief
CVE-2026-74459 records a Unknown severity vulnerability in can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f6e90c113c92e83fc0963d5e60e16b0e8a268981 <0ef136ba052101243ba117a1aca6f4a4c3a81142 || >=b878444519fa03a3edd287d1963cf79ef78be2f1 <b85e5c310382803d27adf6fe6554d4208bc8951c || >=18eee279e9b5bff0db1aca9475ae4bc12804f05c <c311f17c261fd375ddf5755f2ebe1f022c19c5b0 || >=5eaad4f768266f1f17e01232ffe2ef009f8129b7 <19c6c8c6cd5dd14fab5fcd744584812a57cbb78d || >=5eaad4f768266f1f17e01232ffe2ef009f8129b7 <7a0cf2b2497c757c3cb1286eddf2986abb0d387b || 7a0171b4921ad443fee5ed4fcb9d99fa4776edac || 2185ea6e4ebcb61d1224dc7d187c59723cb5ad59 || b8f9ca88253574638bcff38900a4c28d570b1919 || >=6.6.130 <6.6.151 || >=6.12.77 <6.12.103 || >=6.18.17 <6.18.44 || >=5.15.203 <5.16 || >=6.1.167 <6.2 || >=6.19.7 <6.20 | 0ef136ba052101243ba117a1aca6f4a4c3a81142, b85e5c310382803d27adf6fe6554d4208bc8951c, c311f17c261fd375ddf5755f2ebe1f022c19c5b0, 19c6c8c6cd5dd14fab5fcd744584812a57cbb78d, 7a0cf2b2497c757c3cb1286eddf2986abb0d387b, 6.6.151, 6.12.103, 6.18.44, 5.16, 6.2, 6.20 |
| Linux/Linuxgeneric | 7.0 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74459 records a Unknown severity vulnerability in can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f6e90c113c92e83fc0963d5e60e16b0e8a268981 <0ef136ba052101243ba117a1aca6f4a4c3a81142 || >=b878444519fa03a3edd287d1963cf79ef78be2f1 <b85e5c310382803d27adf6fe6554d4208bc8951c || >=18eee279e9b5bff0db1aca9475ae4bc12804f05c <c311f17c261fd375ddf5755f2ebe1f022c19c5b0 || >=5eaad4f768266f1f17e01232ffe2ef009f8129b7 <19c6c8c6cd5dd14fab5fcd744584812a57cbb78d || >=5eaad4f768266f1f17e01232ffe2ef009f8129b7 <7a0cf2b2497c757c3cb1286eddf2986abb0d387b || 7a0171b4921ad443fee5ed4fcb9d99fa4776edac || 2185ea6e4ebcb61d1224dc7d187c59723cb5ad59 || b8f9ca88253574638bcff38900a4c28d570b1919 || >=6.6.130 <6.6.151 || >=6.12.77 <6.12.103 || >=6.18.17 <6.18.44 || >=5.15.203 <5.16 || >=6.1.167 <6.2 || >=6.19.7 <6.20 | 0ef136ba052101243ba117a1aca6f4a4c3a81142, b85e5c310382803d27adf6fe6554d4208bc8951c, c311f17c261fd375ddf5755f2ebe1f022c19c5b0, 19c6c8c6cd5dd14fab5fcd744584812a57cbb78d, 7a0cf2b2497c757c3cb1286eddf2986abb0d387b, 6.6.151, 6.12.103, 6.18.44, 5.16, 6.2, 6.20 |
| Linux/Linuxgeneric | 7.0 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.