CVE-2022-49307

{"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] <TASK>\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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T16:13:59.199Z"}}], "cna": {"title": "tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "078212ad15dbd88840c82c97f12c93d83703c8fd", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "ba08cbc5b53e151d0acf1930fb526fc65b7f3e65", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "f6e07eb7ebec53ffe81fc2489589320fbe4a6b75", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "d68d5e68b7f64de7170f8e04dd9b995c36b2c71c", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "8a95696bdc0e13f8980f05b54a3b9081963d1256", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "ddd67751ab86c6a65f95c35293c42f85a42ac05d", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "1ceb4ca9543a8a788febf6bc8dad2e605e172d5e", "versionType": "git"}, {"status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "lessThan": "689ca31c542687709ba21ec2195c1fbce34fd029", "versionType": "git"}], "programFiles": ["drivers/tty/synclink_gt.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.16"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.16", "versionType": "semver"}, {"status": "unaffected", "version": "4.9.318", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.283", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.247", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.198", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.122", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.47", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.17.15", "versionType": "semver", "lessThanOrEqual": "5.17.*"}, {"status": "unaffected", "version": "5.18.4", "versionType": "semver", "lessThanOrEqual": "5.18.*"}, {"status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/tty/synclink_gt.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-1.2.0"}, "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] <TASK>\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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.9.318", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.283", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.247", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.198", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.122", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.47", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17.15", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.18.4", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.19", "versionStartIncluding": "2.6.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:57:09.382Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49307", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:57:09.382Z", "dateReserved": "2025-02-26T02:08:31.535Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T02:10:39.151Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/tty/synclink_gt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "078212ad15dbd88840c82c97f12c93d83703c8fd", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "ba08cbc5b53e151d0acf1930fb526fc65b7f3e65", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "f6e07eb7ebec53ffe81fc2489589320fbe4a6b75", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "d68d5e68b7f64de7170f8e04dd9b995c36b2c71c", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "8a95696bdc0e13f8980f05b54a3b9081963d1256", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "ddd67751ab86c6a65f95c35293c42f85a42ac05d", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "1ceb4ca9543a8a788febf6bc8dad2e605e172d5e", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}, {"lessThan": "689ca31c542687709ba21ec2195c1fbce34fd029", "status": "affected", "version": "705b6c7b34f2621f95f606d0e683daa10cdb8eb9", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/tty/synclink_gt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.16"}, {"lessThan": "2.6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.9.*", "status": "unaffected", "version": "4.9.318", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.283", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.247", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.198", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.122", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.47", "versionType": "semver"}, {"lessThanOrEqual": "5.17.*", "status": "unaffected", "version": "5.17.15", "versionType": "semver"}, {"lessThanOrEqual": "5.18.*", "status": "unaffected", "version": "5.18.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0D4D4067-974D-4560-8320-22FDA399E3F9", "versionEndExcluding": "4.9.318", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D6823775-2653-4644-A0D4-4E6E68F10C65", "versionEndExcluding": "4.14.283", "versionStartIncluding": "4.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B8CFA0F4-2D75-41F4-9753-87944A08B53B", "versionEndExcluding": "4.19.247", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3EC49633-14DE-4EBD-BB80-76AE2E3EABB9", "versionEndExcluding": "5.4.198", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1B42AA01-44D8-4572-95E6-FF8E374CF9C5", "versionEndExcluding": "5.10.122", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC042EE3-4864-4325-BE0B-4BCDBF11AA61", "versionEndExcluding": "5.15.47", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD", "versionEndExcluding": "5.17.15", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA6D643C-6D6A-4821-8A8D-B5776B8F0103", "versionEndExcluding": "5.18.4", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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] <TASK>\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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() Cuando el controlador falla en alloc_hdlcdev() y luego eliminamos el m\u00f3dulo del controlador, obtendremos el siguiente splat: [ 25.065966] error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN PTI [ 25.066914] KASAN: null-ptr-deref en el rango [0x000000000000c10-0x0000000000000c17] [ 25.069262] RIP: 0010:detach_hdlc_protocol+0x2a/0x3e0 [ 25.077709] Seguimiento de llamadas: [ 25.077924] [ 25.078108] unregister_hdlc_device+0x16/0x30 [ 25.078481] slgt_cleanup+0x157/0x9f0 [synclink_gt] Solucione esto comprobando primero si 'info-&gt;netdev' es un puntero nulo."}], "id": "CVE-2022-49307", "lastModified": "2026-06-17T05:17:40.053", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49307", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:44:25.712102Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:07.503", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/078212ad15dbd88840c82c97f12c93d83703c8fd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ceb4ca9543a8a788febf6bc8dad2e605e172d5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/689ca31c542687709ba21ec2195c1fbce34fd029"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a95696bdc0e13f8980f05b54a3b9081963d1256"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ba08cbc5b53e151d0acf1930fb526fc65b7f3e65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d68d5e68b7f64de7170f8e04dd9b995c36b2c71c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ddd67751ab86c6a65f95c35293c42f85a42ac05d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6e07eb7ebec53ffe81fc2489589320fbe4a6b75"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()", "id": "2348342", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348342"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntty: synclink_gt: Fix null-pointer-dereference in slgt_clean()\nWhen the driver fails at alloc_hdlcdev(), and then we remove the driver\nmodule, we will get the following splat:\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] <TASK>\n[ 25.078108] unregister_hdlc_device+0x16/0x30\n[ 25.078481] slgt_cleanup+0x157/0x9f0 [synclink_gt]\nFix this by checking whether the 'info->netdev' is a null pointer first."], "name": "CVE-2022-49307", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49307\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49307\nhttps://lore.kernel.org/linux-cve-announce/2025022635-CVE-2022-49307-246e@gregkh/T"], "threat_severity": "Moderate"}

{}