usb: xhci: Fix NULL pointer dereference on certain command aborts
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix NULL pointer dereference on certain command aborts If a command is queued to the final usable TRB of a ring segment, the enqueue pointer is advanced to the subsequent link TRB and no further. If the command is later aborted, when the abort completion is handled the dequeue pointer is advanced to the first TRB of the next segment. If no further commands are queued, xhci_handle_stopped_cmd_ring() sees the ring pointers unequal and assumes that there is a pending command, so it calls xhci_mod_cmd_timer() which crashes if cur_cmd was NULL. Don't attempt timer setup if cur_cmd is NULL. The subsequent doorbell ring likely is unnecessary too, but it's harmless. Leave it alone. This is probably Bug 219532, but no confirmation has been received. The issue has been independently reproduced and confirmed fixed using a USB MCU programmed to NAK the Status stage of SET_ADDRESS forever. Everything continued working normally after several prevented crashes.
CVE-2024-57981
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-2024-57981
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": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "fd8bfaeba4a85b14427899adec0efb3954300653",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "b44253956407046e5907d4d72c8fa5b93ae94485",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "cf30300a216a4f8dce94e11781a866a09d4b50d4",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "4ff18870af793ce2034a6ad746e91d0a3d985b88",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "b649f0d5bc256f691c7d234c3986685d54053de1",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "ae069cd2ba09a2bd6a87a68c59ef0b7ea39cd641",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "0ce5c0dac768be14afe2426101b568a0f66bfc4d",
"versionType": "git"
},
{
"status": "affected",
"version": "c311e391a7efd101250c0e123286709b7e736249",
"lessThan": "1e0a19912adb68a4b2b74fd77001c96cd83eb073",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/host/xhci-ring.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.291",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.76",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.13",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.2",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/host/xhci-ring.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-57981
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26857 · Revision 1
- Added to Heist Feed
- Publisher date