289 lines
15 KiB
JSON
289 lines
15 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-22991",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-01-13T15:37:45.937Z",
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"datePublished": "2026-01-23T15:24:12.191Z",
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"dateUpdated": "2026-10-19T18:25:26.442Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:19:59.064Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: make free_choose_arg_map() resilient to partial allocation\n\nfree_choose_arg_map() may dereference a NULL pointer if its caller fails\nafter a partial allocation.\n\nFor example, in decode_choose_args(), if allocation of arg_map->args\nfails, execution jumps to the fail label and free_choose_arg_map() is\ncalled. Since arg_map->size is updated to a non-zero value before memory\nallocation, free_choose_arg_map() will iterate over arg_map->args and\ndereference a NULL pointer.\n\nTo prevent this potential NULL pointer dereference and make\nfree_choose_arg_map() more resilient, add checks for pointers before\niterating."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - The vulnerable decoder is reached through Ceph `CEPH_MSG_OSD_MAP` messages received over the network from monitor or OSD peers. A remote peer that can supply a crafted OSD/CRUSH map can drive execution into `decode_choose_args()` and `free_choose_arg_map()`.\nAC:L - There is no race or timing requirement; the attacker controls the encoded CRUSH choose-arg sizes and can force allocation failure with oversized fields. Cleanup then deterministically dereferences a NULL `args` or `weight_set` pointer in the vulnerable code.\nPR:N - The attacker needs no local privileges on the vulnerable kernel host, and Ceph deployments can use auth-none/no-key configurations or process maps from a malicious configured peer. When uncertain between authentication-dependent and unauthenticated deployments, the higher severity PR:N is selected.\nUI:N - Once a CephFS/RBD/libceph client is connected, OSD maps are processed asynchronously by the kernel networking/messenger path. No additional victim action is needed for a remote peer to deliver the crafted map.\nS:U - The impact is within the vulnerable kernel client host and does not cross a separate security authority such as a hypervisor, VM boundary, or IOMMU boundary. This is a standard kernel availability impact with unchanged scope.\nC:N - The fixed flaw is a NULL pointer dereference during error cleanup after partial allocation failure. It does not provide an attacker-controlled memory read primitive.\nI:N - The direct vulnerable operation is dereferencing NULL in cleanup, not an out-of-bounds write, UAF, or controlled write. No integrity-modifying primitive is exposed by this fix.\nA:H - A NULL pointer dereference in kernel context can oops or panic the system, and the crafted map can be sent repeatedly by the remote peer. This is a high availability impact."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ceph/osdmap.c"
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],
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"versions": [
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "9b3730dabcf3764bfe3ff07caf55e641a0b45234",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "851241d3f78a5505224dc21c03d8692f530256b4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "ec1850f663da64842614c86b20fe734be070c2ba",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "8081faaf089db5280c3be820948469f7c58ef8dd",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "f21c3fdb96833aac2f533506899fe38c19cf49d5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
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"lessThan": "e3fe30e57649c551757a02e1cad073c47e1e075e",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ceph/osdmap.c"
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],
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"versions": [
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{
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"version": "4.13",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.13",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.248",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.161",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.121",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.66",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.6",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "5.10.248"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234"
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},
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{
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"url": "https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba"
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},
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{
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"url": "https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf"
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},
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{
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"url": "https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5"
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},
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{
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"url": "https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e"
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}
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],
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"title": "libceph: make free_choose_arg_map() resilient to partial allocation",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-22991",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-06-16T20:35:31.087945Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-476",
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"description": "CWE-476 NULL Pointer Dereference"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T18:25:26.442Z"
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}
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}
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]
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}
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} |