CVE-2026-23108 (GCVE-0-2026-23108)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-06-11 18:44
VLAI
EPSS
VEX
Title
can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak
Fix similar memory leak as in commit 7352e1d5932a ("can: gs_usb:
gs_usb_receive_bulk_callback(): fix URB memory leak").
In usb_8dev_open() -> usb_8dev_start(), the URBs for USB-in transfers are
allocated, added to the priv->rx_submitted anchor and submitted. In the
complete callback usb_8dev_read_bulk_callback(), the URBs are processed and
resubmitted. In usb_8dev_close() -> unlink_all_urbs() the URBs are freed by
calling usb_kill_anchored_urbs(&priv->rx_submitted).
However, this does not take into account that the USB framework unanchors
the URB before the complete function is called. This means that once an
in-URB has been completed, it is no longer anchored and is ultimately not
released in usb_kill_anchored_urbs().
Fix the memory leak by anchoring the URB in the
usb_8dev_read_bulk_callback() to the priv->rx_submitted anchor.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:42 UTC
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
0024d8ad1639e32d717445c69ca813fd19c2a91c , < feb8243eaea7efd5279b19667d7189fd8654c87a
(git)
Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < ef6e608e5ee71eca0cd3475c737e684cef24f240 (git) Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < 60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9 (git) Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < 59ff56992bba28051ad67cd8cc7b0edfe7280796 (git) Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < ea4a98e924164586066b39f29bfcc7cc9da108cd (git) Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < 07e9373739c6388af9d99797cdb2e79dbbcbe92b (git) Affected: 0024d8ad1639e32d717445c69ca813fd19c2a91c , < f7a980b3b8f80fe367f679da376cf76e800f9480 (git) |
guessed | |
| Linux | Linux |
Affected:
3.9
Unaffected: 0 , < 3.9 (semver) Unaffected: 5.10.249 , ≤ 5.10.* (semver) Unaffected: 5.15.199 , ≤ 5.15.* (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.122 , ≤ 6.6.* (semver) Unaffected: 6.12.68 , ≤ 6.12.* (semver) Unaffected: 6.18.8 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed |
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In usb_8dev_close() -\u003e unlink_all_urbs() the URBs are freed by\\ncalling usb_kill_anchored_urbs(\u0026priv-\u003erx_submitted).\\n\\nHowever, this does not take into account that the USB framework unanchors\\nthe URB before the complete function is called. This means that once an\\nin-URB has been completed, it is no longer anchored and is ultimately not\\nreleased in usb_kill_anchored_urbs().\\n\\nFix the memory leak by anchoring the URB in the\\nusb_8dev_read_bulk_callback() to the priv-\u003erx_submitted anchor.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\ncan: usb_8dev: usb_8dev_read_bulk_callback(): corregir fuga de memoria de URB\\n\\nCorrige una fuga de memoria similar a la del commit 7352e1d5932a (\u0027can: gs_usb: gs_usb_receive_bulk_callback(): corregir fuga de memoria de URB\u0027).\\n\\nEn usb_8dev_open() -\u0026gt; usb_8dev_start(), los URB para transferencias USB de entrada se asignan, se a\u00f1aden al ancla priv-\u0026gt;rx_submitted y se env\u00edan. En la funci\u00f3n de devoluci\u00f3n de llamada completa usb_8dev_read_bulk_callback(), los URB se procesan y se reenv\u00edan. 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Esto significa que una vez que un URB de entrada ha sido completado, ya no est\u00e1 anclado y finalmente no se libera en usb_kill_anchored_urbs().\\n\\nCorrige la fuga de memoria anclando el URB en usb_8dev_read_bulk_callback() al ancla 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Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.9\",\"versionEndExcluding\":\"5.10.249\",\"matchCriteriaId\":\"0DA926F9-DB52-45D7-A34F-F18540B9BD53\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.199\",\"matchCriteriaId\":\"A247FBA6-BEB9-484F-B892-DD5517949CCD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.162\",\"matchCriteriaId\":\"6579E0D4-0641-479D-A4C3-0EF618798C55\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.122\",\"matchCriteriaId\":\"8EAAE395-0162-4BAF-9AD5-E9AF3C869C4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.68\",\"matchCriteriaId\":\"52F38E19-0FDD-4992-9D6D-D4169D689598\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.8\",\"matchCriteriaId\":\"E65C6E79-7EBE-4C77-93F0-818CF5B38F4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F71D92C0-C023-48BD-B3B6-70B638EEE298\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"13580667-0A98-40CC-B29F-D12790B91BDB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07e9373739c6388af9d99797cdb2e79dbbcbe92b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/59ff56992bba28051ad67cd8cc7b0edfe7280796\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ea4a98e924164586066b39f29bfcc7cc9da108cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef6e608e5ee71eca0cd3475c737e684cef24f240\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f7a980b3b8f80fe367f679da376cf76e800f9480\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/feb8243eaea7efd5279b19667d7189fd8654c87a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T11:25:08+00:00",
"cve": "CVE-2026-23108",
"id": "CVE-2026-23108",
"initial_release_date": "2026-02-04T00:00:00+00:00",
"product_status:known_affected": "260",
"product_status:known_not_affected": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23108.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-23108\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-10T20:42:19.985708Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-11T17:39:17.978Z\"}}], \"cna\": {\"title\": \"can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"feb8243eaea7efd5279b19667d7189fd8654c87a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"ef6e608e5ee71eca0cd3475c737e684cef24f240\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"59ff56992bba28051ad67cd8cc7b0edfe7280796\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"ea4a98e924164586066b39f29bfcc7cc9da108cd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"07e9373739c6388af9d99797cdb2e79dbbcbe92b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\", \"lessThan\": \"f7a980b3b8f80fe367f679da376cf76e800f9480\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/can/usb/usb_8dev.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.249\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.199\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.162\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.122\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.68\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/can/usb/usb_8dev.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/feb8243eaea7efd5279b19667d7189fd8654c87a\"}, {\"url\": \"https://git.kernel.org/stable/c/ef6e608e5ee71eca0cd3475c737e684cef24f240\"}, {\"url\": \"https://git.kernel.org/stable/c/60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9\"}, {\"url\": \"https://git.kernel.org/stable/c/59ff56992bba28051ad67cd8cc7b0edfe7280796\"}, {\"url\": \"https://git.kernel.org/stable/c/ea4a98e924164586066b39f29bfcc7cc9da108cd\"}, {\"url\": \"https://git.kernel.org/stable/c/07e9373739c6388af9d99797cdb2e79dbbcbe92b\"}, {\"url\": \"https://git.kernel.org/stable/c/f7a980b3b8f80fe367f679da376cf76e800f9480\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak\\n\\nFix similar memory leak as in commit 7352e1d5932a (\\\"can: gs_usb:\\ngs_usb_receive_bulk_callback(): fix URB memory leak\\\").\\n\\nIn usb_8dev_open() -\u003e usb_8dev_start(), the URBs for USB-in transfers are\\nallocated, added to the priv-\u003erx_submitted anchor and submitted. In the\\ncomplete callback usb_8dev_read_bulk_callback(), the URBs are processed and\\nresubmitted. In usb_8dev_close() -\u003e unlink_all_urbs() the URBs are freed by\\ncalling usb_kill_anchored_urbs(\u0026priv-\u003erx_submitted).\\n\\nHowever, this does not take into account that the USB framework unanchors\\nthe URB before the complete function is called. This means that once an\\nin-URB has been completed, it is no longer anchored and is ultimately not\\nreleased in usb_kill_anchored_urbs().\\n\\nFix the memory leak by anchoring the URB in the\\nusb_8dev_read_bulk_callback() to the priv-\u003erx_submitted anchor.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.249\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.199\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.162\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.122\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.68\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.8\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"3.9\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T22:00:16.739Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-23108\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-11T18:44:21.978Z\", \"dateReserved\": \"2026-01-13T15:37:45.967Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-02-04T16:08:28.650Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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