{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49916", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.251Z", "datePublished": "2025-05-01T14:10:56.851Z", "dateUpdated": "2026-05-23T15:23:13.168Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:23:13.168Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrose: Fix NULL pointer dereference in rose_send_frame()\n\nThe syzkaller reported an issue:\n\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\nWorkqueue: rcu_gp srcu_invoke_callbacks\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\nCall Trace:\n \n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\n expire_timers kernel/time/timer.c:1519 [inline]\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\n __run_timers kernel/time/timer.c:1768 [inline]\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\n [...]\n \n\nIt triggers NULL pointer dereference when 'neigh->dev->dev_addr' is\ncalled in the rose_send_frame(). It's the first occurrence of the\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh', and\nthe 'dev' in 'rose_loopback_neigh' is initialized sa nullptr.\n\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\n(\"rose: Fix Null pointer dereference in rose_send_frame()\") ever.\nBut it's introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\n(\"rose: check NULL rose_loopback_neigh->loopback\") again.\n\nWe fix it by add NULL check in rose_transmit_clear_request(). When\nthe 'dev' in 'neigh' is NULL, we don't reply the request and just\nclear it.\n\nsyzkaller don't provide repro, and I provide a syz repro like:\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000180)={'rose0\\x00', 0x201})\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\nbind$rose(r1, &(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\nconnect$rose(r1, &(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/rose/rose_link.c" ], "versions": [ { "version": "76885373129b13df35ecc9b4ee86ea5840f12133", "lessThan": "01b9c68c121847d05a4ccef68244dadf82bfa331", "status": "affected", "versionType": "git" }, { "version": "b8f9de195d6303f52bae16c7911f35ac14ba7e3d", "lessThan": "bbc03d74e641e824754443b908454ca9e203773e", "status": "affected", "versionType": "git" }, { "version": "0aae33feb7a56b28318f92c960a3d08d9c305984", "lessThan": "5b46adfbee1e429f33b10a88d6c00fa88f3d6c77", "status": "affected", "versionType": "git" }, { "version": "6e4b20d548fc97ecbdca15c8d96302ee5e3e6313", "lessThan": "b13be5e852b03f376058027e462fad4230240891", "status": "affected", "versionType": "git" }, { "version": "de3deadd11987070788b48825bec4647458b988d", "lessThan": "f06186e5271b980bac03f5c97276ed0146ddc9b0", "status": "affected", "versionType": "git" }, { "version": "9cf85759e104d7e9c3fd8920a554195b715d6797", "lessThan": "3e2129c67daca21043a26575108f6286c85e71f6", "status": "affected", "versionType": "git" }, { "version": "3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8", "lessThan": "a601e5eded33bb88b8a42743db8fef3ad41dd97e", "status": "affected", "versionType": "git" }, { "version": "3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8", "lessThan": "e97c089d7a49f67027395ddf70bf327eeac2611e", "status": "affected", "versionType": "git" }, { "version": "9197ca40fd9de265caedba70d0cb5814c4e45952", "status": "affected", "versionType": "git" }, { "version": "4.9.327", "lessThan": "4.9.333", "status": "affected", "versionType": "semver" }, { "version": "4.14.292", "lessThan": "4.14.299", "status": "affected", "versionType": "semver" }, { "version": "4.19.257", "lessThan": "4.19.265", "status": "affected", "versionType": "semver" }, { "version": "5.4.212", "lessThan": "5.4.224", "status": "affected", "versionType": "semver" }, { "version": "5.10.140", "lessThan": "5.10.154", "status": "affected", "versionType": "semver" }, { "version": "5.15.64", "lessThan": "5.15.78", "status": "affected", "versionType": "semver" }, { "version": "5.19.6", "lessThan": "5.20", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/rose/rose_link.c" ], "versions": [ { "version": "6.0", "status": "affected" }, { "version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.333", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.299", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.265", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.224", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.154", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.78", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.8", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "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": "4.9.327", "versionEndExcluding": "4.9.333" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.292", "versionEndExcluding": "4.14.299" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.257", "versionEndExcluding": "4.19.265" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.212", "versionEndExcluding": "5.4.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.140", "versionEndExcluding": "5.10.154" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.64", "versionEndExcluding": "5.15.78" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.0.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331" }, { "url": "https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e" }, { "url": "https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77" }, { "url": "https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891" }, { "url": "https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0" }, { "url": "https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6" }, { "url": "https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e" }, { "url": "https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e" } ], "title": "rose: Fix NULL pointer dereference in rose_send_frame()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "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": { "timestamp": "2025-10-01T16:00:00.455092Z", "id": "CVE-2022-49916", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T16:00:19.393Z" } } ] } }