{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49307", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.535Z", "datePublished": "2025-02-26T02:10:39.151Z", "dateUpdated": "2026-05-11T18:57:09.382Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:57:09.382Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: synclink_gt: Fix null-pointer-dereference in slgt_clean()\n\nWhen the driver fails at alloc_hdlcdev(), and then we remove the driver\nmodule, we will get the following splat:\n\n[ 25.065966] general protection fault, probably for non-canonical address 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN PTI\n[ 25.066914] KASAN: null-ptr-deref in range [0x0000000000000c10-0x0000000000000c17]\n[ 25.069262] RIP: 0010:detach_hdlc_protocol+0x2a/0x3e0\n[ 25.077709] Call Trace:\n[ 25.077924] \n[ 25.078108] unregister_hdlc_device+0x16/0x30\n[ 25.078481] slgt_cleanup+0x157/0x9f0 [synclink_gt]\n\nFix this by checking whether the 'info->netdev' is a null pointer first." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/tty/synclink_gt.c" ], "versions": [ { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "078212ad15dbd88840c82c97f12c93d83703c8fd", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "ba08cbc5b53e151d0acf1930fb526fc65b7f3e65", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "f6e07eb7ebec53ffe81fc2489589320fbe4a6b75", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "d68d5e68b7f64de7170f8e04dd9b995c36b2c71c", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "8a95696bdc0e13f8980f05b54a3b9081963d1256", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "ddd67751ab86c6a65f95c35293c42f85a42ac05d", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "1ceb4ca9543a8a788febf6bc8dad2e605e172d5e", "status": "affected", "versionType": "git" }, { "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "689ca31c542687709ba21ec2195c1fbce34fd029", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/tty/synclink_gt.c" ], "versions": [ { "version": "2.6.16", "status": "affected" }, { "version": "0", "lessThan": "2.6.16", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.318", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.283", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.247", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.198", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.122", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "4.9.318" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "4.14.283" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "4.19.247" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.4.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.10.122" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.15.47" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.17.15" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.18.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d" }, { "url": "https://git.kernel.org/stable/c/078212ad15dbd88840c82c97f12c93d83703c8fd" }, { "url": "https://git.kernel.org/stable/c/ba08cbc5b53e151d0acf1930fb526fc65b7f3e65" }, { "url": "https://git.kernel.org/stable/c/f6e07eb7ebec53ffe81fc2489589320fbe4a6b75" }, { "url": "https://git.kernel.org/stable/c/d68d5e68b7f64de7170f8e04dd9b995c36b2c71c" }, { "url": "https://git.kernel.org/stable/c/8a95696bdc0e13f8980f05b54a3b9081963d1256" }, { "url": "https://git.kernel.org/stable/c/ddd67751ab86c6a65f95c35293c42f85a42ac05d" }, { "url": "https://git.kernel.org/stable/c/1ceb4ca9543a8a788febf6bc8dad2e605e172d5e" }, { "url": "https://git.kernel.org/stable/c/689ca31c542687709ba21ec2195c1fbce34fd029" } ], "title": "tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49307", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:44:25.712102Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:58.412Z" } } ] } }