can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak
In the Linux kernel, the following vulnerability has been resolved: can: kvaser_usb: kvaser_usb_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 kvaser_usb_set_{,data_}bittiming() -> kvaser_usb_setup_rx_urbs(), the URBs for USB-in transfers are allocated, added to the dev->rx_submitted anchor and submitted. In the complete callback kvaser_usb_read_bulk_callback(), the URBs are processed and resubmitted. In kvaser_usb_remove_interfaces() the URBs are freed by calling usb_kill_anchored_urbs(&dev->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 kvaser_usb_read_bulk_callback() to the dev->rx_submitted anchor.
CVE-2026-23061
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23061
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "d9d824582f2ec76459ffab449e9b05c7bc49645c",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "40a3334ffda479c63e416e61ff086485e24401f7",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "c1b39fa24c140bc616f51fef4175c1743e2bb132",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "7c308f7530bffafa994e0aa8dc651a312f4b9ff4",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "94a7fc42e21c7d9d1c49778cd1db52de5df52a01",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "3b1a593eab941c3f32417896cc7df564191f2482",
"versionType": "git"
},
{
"status": "affected",
"version": "080f40a6fa28dab299da7a652e444b1e2d9231e7",
"lessThan": "248e8e1a125fa875158df521b30f2cc7e27eeeaa",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.8",
"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/kvaser_usb/kvaser_usb_core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23061
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #39734 · Revision 1
- Added to Heist Feed
- Publisher date