keys: Protect the type name while describing a key
Severity and exploitation
KEV coverage does not rule out exploitation.
Assessment vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HSeverity
high7.0CVSS measures technical severity, not the likelihood of an attack.
Known exploitation
Not listed in the checked CISA KEV catalog
Absence from CISA KEV does not rule out attacks.
Public exploit
Not established by this record
Missing evidence does not mean no public exploit exists.
Remediation
Fix status not established
No structured fix or guidance is available here. Check the latest publisher advisory.
What this means
The Linux kernel is affected by a vulnerability where the key type's name is not protected while describing a key, potentially causing a page fault. This issue affects Linux kernel versions starting from 3.18. The vulnerability requires access to the key and can cause a page fault error.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Attack conditions
No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.
Review supporting sources →Affected versions
Check the exact model, release, and any platform requirements against your installation.
Linux · Linux
Linux
9 ranges
Linux · Linux
Linux
Compare with this publisher’s ranges. This does not inspect your installation.
affected
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before 19c4de819e52b7f606468fbfe4fcef4e812e2777
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before a49e6c9a1a5b3457c946a8efb616ce13b4ca8194
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before 916667df7695366f23cfaf365b5840b228cc4b2e
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before dddd3a1ab7d12ee163477918ff6eb943361db4fe
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before 3c3cfd9e262afc9558c38f8cec57f09d10988546
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before 6b613747f7ea309ada5b8d05b55398c338f7a968
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before dea367df18e3a4faac393e3a4e818ee03af89b19
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before 0461bc8f91116aae4a020e15f4e1c1fd535ab35e
git versions
aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7 → before fced7238b7e80cf8aa688d5af976e4aa6e33c329
git versions
Other versions: unaffected
Linux · Linux
Linux
11 ranges
Linux · Linux
Linux
Compare with this publisher’s ranges. This does not inspect your installation.
affected
3.18
unaffected
0 → before 3.18
semver versions
5.10.273 → through 5.10.*
semver versions
5.15.224 → through 5.15.*
semver versions
6.1.191 → through 6.1.*
semver versions
6.6.161 → through 6.6.*
semver versions
6.12.115 → through 6.12.*
semver versions
6.18.60 → through 6.18.*
semver versions
7.2.14 → through 7.2.*
semver versions
7.3.1 → through 7.3.*
semver versions
7.4-rc1 → through *
original_commit_for_fix versions
Other versions: affected
What to do
Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.
No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.
cve.new guidance unless attributed to a publisher. This page does not inspect your installation.
Public exploit evidence
No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.
Original source description
Read the full publisher description
In the Linux kernel, the following vulnerability has been resolved:
keys: Protect the type name while describing a key
keyctl_describe_key() must keep the key type's name alive until kasprintf() has consumed it. The retained key reference keeps the key and its description alive, but does not pin the module providing its type. The name is passed to kasprintf() without holding key->sem.
kvasprintf() uses the saved name pointer in two formatting passes, with a GFP_KERNEL allocation between them. With AF_RXRPC=m, a task that passes View permission before type retirement can overlap a privileged module unload in this order:
- KEYCTL_DESCRIBE looks up the key, saves key->type->name in the kasprintf() arguments and completes the first formatting pass.
- While the formatter is delayed before its second pass, af_rxrpc_exit() calls unregister_key_type(), which removes the type from the registry and waits for key_gc_keytype().
- The collector takes key->sem for writing, retypes the retained key to key_type_dead and completes retirement. Unregistration and module exit return, allowing free_module() to release the type and name.
- The formatter resumes its second pass and reads the saved name from released module storage, which can fault in string().
Hold key->sem for reading across kasprintf(). The collector then cannot retype the key or complete retirement until both formatting passes have finished. If retirement wins the lock first, formatting uses the core key_type_dead name instead. Release the semaphore immediately after kasprintf(), including on allocation failure, before copying to userspace.
Oops report as below:
BUG: unable to handle page fault for address: fffffbfff8054794
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
RIP: 0010:string+0x23f/0x470
Call Trace:
vsnprintf+0x330/0x1110
References
9 sourcesInside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-99224View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
Linux · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 5.10.273
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 5.15.224
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 6.1.191
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 6.6.161
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 6.12.115
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 6.18.60
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 7.2.14
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 7.3.1
Vulnerable product
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*From (inclusive): 3.18
Before: 7.4-rc1
Original applicability statements
[
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "5.10.273"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "5.15.224"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.1.191"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.6.161"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.12.115"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.18.60"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "7.2.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "7.3.1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "7.4-rc1"
}
]
}
]
}
]Contributing organizations · 1
Assigning organization
Timeline
All times UTCAdvisory published
Publication date supplied by the source.
Source updated
Latest modification date supplied by the source.
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.
What changed
Follow changes- CVE · CVE-2026-99224
Observed 2026-11-03T19:50:18.469Z · upstream updated 2026-11-03T19:12:57.782Z
Product or version evidence changed
before
[ { "vendor": "Linux", "name": "Linux", "platforms": [], "versions": [ { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "19c4de819e52b7f606468fbfe4fcef4e812e2777", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "a49e6c9a1a5b3457c946a8efb616ce13b4ca8194", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "916667df7695366f23cfaf365b5840b228cc4b2e", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "dddd3a1ab7d12ee163477918ff6eb943361db4fe", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "3c3cfd9e262afc9558c38f8cec57f09d10988546", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "6b613747f7ea309ada5b8d05b55398c338f7a968", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "dea367df18e3a4faac393e3a4e818ee03af89b19", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "0461bc8f91116aae4a020e15f4e1c1fd535ab35e", "versionType": "git" } ], "defaultStatus": "unaffected", "cpes": [], "source": "Linux", "url": "https://www.cve.org/CVERecord?id=CVE-2026-99224" }, { "vendor": "Linux", "name": "Linux", "platforms": [], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "status": "unaffected", "lessThan": "3.18", "versionType": "semver" }, { "version": "5.10.273", "status": "unaffected", "lessThanOrEqual": "5.10.*", "versionType": "semver" }, { "version": "5.15.224", "status": "unaffected", "lessThanOrEqual": "5.15.*", "versionType": "semver" }, { "version": "6.1.191", "status": "unaffected", "lessThanOrEqual": "6.1.*", "versionType": "semver" }, { "version": "6.6.161", "status": "unaffected", "lessThanOrEqual": "6.6.*", "versionType": "semver" }, { "version": "6.12.115", "status": "unaffected", "lessThanOrEqual": "6.12.*", "versionType": "semver" }, { "version": "6.18.60", "status": "unaffected", "lessThanOrEqual": "6.18.*", "versionType": "semver" }, { "version": "7.2.14", "status": "unaffected", "lessThanOrEqual": "7.2.*", "versionType": "semver" }, { "version": "7.3.1", "status": "unaffected", "lessThanOrEqual": "7.3.*", "versionType": "semver" } ], "defaultStatus": "affected", "cpes": [], "source": "Linux", "url": "https://www.cve.org/CVERecord?id=CVE-2026-99224" } ]after
[ { "vendor": "Linux", "name": "Linux", "platforms": [], "versions": [ { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "19c4de819e52b7f606468fbfe4fcef4e812e2777", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "a49e6c9a1a5b3457c946a8efb616ce13b4ca8194", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "916667df7695366f23cfaf365b5840b228cc4b2e", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "dddd3a1ab7d12ee163477918ff6eb943361db4fe", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "3c3cfd9e262afc9558c38f8cec57f09d10988546", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "6b613747f7ea309ada5b8d05b55398c338f7a968", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "dea367df18e3a4faac393e3a4e818ee03af89b19", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "0461bc8f91116aae4a020e15f4e1c1fd535ab35e", "versionType": "git" }, { "version": "aa9d4437893f7e015ce5b6d6c443a9ba92c8a2e7", "status": "affected", "lessThan": "fced7238b7e80cf8aa688d5af976e4aa6e33c329", "versionType": "git" } ], "defaultStatus": "unaffected", "cpes": [], "source": "Linux", "url": "https://www.cve.org/CVERecord?id=CVE-2026-99224" }, { "vendor": "Linux", "name": "Linux", "platforms": [], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "status": "unaffected", "lessThan": "3.18", "versionType": "semver" }, { "version": "5.10.273", "status": "unaffected", "lessThanOrEqual": "5.10.*", "versionType": "semver" }, { "version": "5.15.224", "status": "unaffected", "lessThanOrEqual": "5.15.*", "versionType": "semver" }, { "version": "6.1.191", "status": "unaffected", "lessThanOrEqual": "6.1.*", "versionType": "semver" }, { "version": "6.6.161", "status": "unaffected", "lessThanOrEqual": "6.6.*", "versionType": "semver" }, { "version": "6.12.115", "status": "unaffected", "lessThanOrEqual": "6.12.*", "versionType": "semver" }, { "version": "6.18.60", "status": "unaffected", "lessThanOrEqual": "6.18.*", "versionType": "semver" }, { "version": "7.2.14", "status": "unaffected", "lessThanOrEqual": "7.2.*", "versionType": "semver" }, { "version": "7.3.1", "status": "unaffected", "lessThanOrEqual": "7.3.*", "versionType": "semver" }, { "version": "7.4-rc1", "status": "unaffected", "lessThanOrEqual": "*", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected", "cpes": [], "source": "Linux", "url": "https://www.cve.org/CVERecord?id=CVE-2026-99224" } ]References changed
before
[ "https://git.kernel.org/stable/c/19c4de819e52b7f606468fbfe4fcef4e812e2777", "https://git.kernel.org/stable/c/a49e6c9a1a5b3457c946a8efb616ce13b4ca8194", "https://git.kernel.org/stable/c/916667df7695366f23cfaf365b5840b228cc4b2e", "https://git.kernel.org/stable/c/dddd3a1ab7d12ee163477918ff6eb943361db4fe", "https://git.kernel.org/stable/c/3c3cfd9e262afc9558c38f8cec57f09d10988546", "https://git.kernel.org/stable/c/6b613747f7ea309ada5b8d05b55398c338f7a968", "https://git.kernel.org/stable/c/dea367df18e3a4faac393e3a4e818ee03af89b19", "https://git.kernel.org/stable/c/0461bc8f91116aae4a020e15f4e1c1fd535ab35e" ]
after
[ "https://git.kernel.org/stable/c/19c4de819e52b7f606468fbfe4fcef4e812e2777", "https://git.kernel.org/stable/c/a49e6c9a1a5b3457c946a8efb616ce13b4ca8194", "https://git.kernel.org/stable/c/916667df7695366f23cfaf365b5840b228cc4b2e", "https://git.kernel.org/stable/c/dddd3a1ab7d12ee163477918ff6eb943361db4fe", "https://git.kernel.org/stable/c/3c3cfd9e262afc9558c38f8cec57f09d10988546", "https://git.kernel.org/stable/c/6b613747f7ea309ada5b8d05b55398c338f7a968", "https://git.kernel.org/stable/c/dea367df18e3a4faac393e3a4e818ee03af89b19", "https://git.kernel.org/stable/c/0461bc8f91116aae4a020e15f4e1c1fd535ab35e", "https://git.kernel.org/stable/c/fced7238b7e80cf8aa688d5af976e4aa6e33c329" ]
Environment requirements changed
before
[ { "source": "Linux", "statements": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.10.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.191" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.6.161" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.12.115" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.18.60" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.2.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.3.1" } ] } ] } ] } ]after
[ { "source": "Linux", "statements": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.10.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.191" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.6.161" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.12.115" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.18.60" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.2.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.3.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.4-rc1" } ] } ] } ] } ]
Large field values are marked as truncated previews. Original source snapshots remain retained.
Showing up to 50 most recent observed changes.