gsd-2024-26844
Vulnerability from gsd
Modified
2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved:
block: Fix WARNING in _copy_from_iter
Syzkaller reports a warning in _copy_from_iter because an
iov_iter is supposedly used in the wrong direction. The reason
is that syzcaller managed to generate a request with
a transfer direction of SG_DXFER_TO_FROM_DEV. This instructs
the kernel to copy user buffers into the kernel, read into
the copied buffers and then copy the data back to user space.
Thus the iovec is used in both directions.
Detect this situation in the block layer and construct a new
iterator with the correct direction for the copy-in.
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2024-26844" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix WARNING in _copy_from_iter\n\nSyzkaller reports a warning in _copy_from_iter because an\niov_iter is supposedly used in the wrong direction. The reason\nis that syzcaller managed to generate a request with\na transfer direction of SG_DXFER_TO_FROM_DEV. This instructs\nthe kernel to copy user buffers into the kernel, read into\nthe copied buffers and then copy the data back to user space.\n\nThus the iovec is used in both directions.\n\nDetect this situation in the block layer and construct a new\niterator with the correct direction for the copy-in.", "id": "GSD-2024-26844", "modified": "2024-02-20T06:02:29.165484Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2024-26844", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "1da177e4c3f4", "version_value": "8fc80874103a" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.80", "versionType": "custom" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.19", "versionType": "custom" }, { "lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.7", "versionType": "custom" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix WARNING in _copy_from_iter\n\nSyzkaller reports a warning in _copy_from_iter because an\niov_iter is supposedly used in the wrong direction. The reason\nis that syzcaller managed to generate a request with\na transfer direction of SG_DXFER_TO_FROM_DEV. This instructs\nthe kernel to copy user buffers into the kernel, read into\nthe copied buffers and then copy the data back to user space.\n\nThus the iovec is used in both directions.\n\nDetect this situation in the block layer and construct a new\niterator with the correct direction for the copy-in." } ] }, "generator": { "engine": "bippy-d175d3acf727" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b" }, { "name": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956" }, { "name": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b" }, { "name": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6" } ] } }, "nvd.nist.gov": { "cve": { "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix WARNING in _copy_from_iter\n\nSyzkaller reports a warning in _copy_from_iter because an\niov_iter is supposedly used in the wrong direction. The reason\nis that syzcaller managed to generate a request with\na transfer direction of SG_DXFER_TO_FROM_DEV. This instructs\nthe kernel to copy user buffers into the kernel, read into\nthe copied buffers and then copy the data back to user space.\n\nThus the iovec is used in both directions.\n\nDetect this situation in the block layer and construct a new\niterator with the correct direction for the copy-in." } ], "id": "CVE-2024-26844", "lastModified": "2024-04-17T12:48:07.510", "metrics": {}, "published": "2024-04-17T10:15:10.093", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" } } } }
Loading...
Loading...
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.