{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-48785", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-20T11:09:39.069Z", "datePublished": "2024-07-16T11:13:21.118Z", "dateUpdated": "2026-05-11T18:47:02.714Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:47:02.714Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: use rcu-safe version of ipv6_get_lladdr()\n\nSome time ago 8965779d2c0e (\"ipv6,mcast: always hold idev->lock before mca_lock\")\nswitched ipv6_get_lladdr() to __ipv6_get_lladdr(), which is rcu-unsafe\nversion. That was OK, because idev->lock was held for these codepaths.\n\nIn 88e2ca308094 (\"mld: convert ifmcaddr6 to RCU\") these external locks were\nremoved, so we probably need to restore the original rcu-safe call.\n\nOtherwise, we occasionally get a machine crashed/stalled with the following\nin dmesg:\n\n[ 3405.966610][T230589] general protection fault, probably for non-canonical address 0xdead00000000008c: 0000 [#1] SMP NOPTI\n[ 3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: G O 5.15.19-cloudflare-2022.2.1 #1\n[ 3405.998061][T230589] Hardware name: SUPA-COOL-SERV\n[ 3406.009552][T230589] Workqueue: mld mld_ifc_work\n[ 3406.017224][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60\n[ 3406.025780][T230589] Code: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 <66> 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b\n[ 3406.055748][T230589] RSP: 0018:ffff94e4b3fc3d10 EFLAGS: 00010202\n[ 3406.065617][T230589] RAX: dead00000000005a RBX: ffff94e4b3fc3d30 RCX: 0000000000000040\n[ 3406.077477][T230589] RDX: dead000000000122 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008\n[ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000\n[ 3406.101445][T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100\n[ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 00000000000005dc R15: ffff8c3a31431000\n[ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000\n[ 3406.138992][T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0000000000350ee0\n[ 3406.162421][T230589] Call Trace:\n[ 3406.170235][T230589] <TASK>\n[ 3406.177736][T230589] mld_newpack+0xfe/0x1a0\n[ 3406.186686][T230589] add_grhead+0x87/0xa0\n[ 3406.195498][T230589] add_grec+0x485/0x4e0\n[ 3406.204310][T230589] ? newidle_balance+0x126/0x3f0\n[ 3406.214024][T230589] mld_ifc_work+0x15d/0x450\n[ 3406.223279][T230589] process_one_work+0x1e6/0x380\n[ 3406.232982][T230589] worker_thread+0x50/0x3a0\n[ 3406.242371][T230589] ? rescuer_thread+0x360/0x360\n[ 3406.252175][T230589] kthread+0x127/0x150\n[ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40\n[ 3406.271287][T230589] ret_from_fork+0x22/0x30\n[ 3406.280812][T230589] </TASK>\n[ 3406.288937][T230589] Modules linked in: ... [last unloaded: kheaders]\n[ 3406.476714][T230589] ---[ end trace 3525a7655f2f3b9e ]---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/addrconf.h", "net/ipv6/addrconf.c", "net/ipv6/mcast.c"], "versions": [{"version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "3e11ef1903cf6c2fba35594b193a3570854d9e9e", "status": "affected", "versionType": "git"}, {"version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "27f567c84f446048670376827e356f9c92033bf9", "status": "affected", "versionType": "git"}, {"version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "26394fc118d6115390bd5b3a0fb17096271da227", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/addrconf.h", "net/ipv6/addrconf.c", "net/ipv6/mcast.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.25", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.11", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17", "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": "5.13", "versionEndExcluding": "5.15.25"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.16.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e"}, {"url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9"}, {"url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227"}], "title": "ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.616Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48785", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:00:04.966004Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:16.592Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.616Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48785", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:00:04.966004Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:21.733Z"}}], "cna": {"title": "ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "3e11ef1903cf6c2fba35594b193a3570854d9e9e", "versionType": "git"}, {"status": "affected", "version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "27f567c84f446048670376827e356f9c92033bf9", "versionType": "git"}, {"status": "affected", "version": "88e2ca3080947fe22eb520c1f8231e79a105d011", "lessThan": "26394fc118d6115390bd5b3a0fb17096271da227", "versionType": "git"}], "programFiles": ["include/net/addrconf.h", "net/ipv6/addrconf.c", "net/ipv6/mcast.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"status": "unaffected", "version": "0", "lessThan": "5.13", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.25", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.11", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/addrconf.h", "net/ipv6/addrconf.c", "net/ipv6/mcast.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e"}, {"url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9"}, {"url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: use rcu-safe version of ipv6_get_lladdr()\n\nSome time ago 8965779d2c0e (\"ipv6,mcast: always hold idev->lock before mca_lock\")\nswitched ipv6_get_lladdr() to __ipv6_get_lladdr(), which is rcu-unsafe\nversion. That was OK, because idev->lock was held for these codepaths.\n\nIn 88e2ca308094 (\"mld: convert ifmcaddr6 to RCU\") these external locks were\nremoved, so we probably need to restore the original rcu-safe call.\n\nOtherwise, we occasionally get a machine crashed/stalled with the following\nin dmesg:\n\n[ 3405.966610][T230589] general protection fault, probably for non-canonical address 0xdead00000000008c: 0000 [#1] SMP NOPTI\n[ 3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: G O 5.15.19-cloudflare-2022.2.1 #1\n[ 3405.998061][T230589] Hardware name: SUPA-COOL-SERV\n[ 3406.009552][T230589] Workqueue: mld mld_ifc_work\n[ 3406.017224][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60\n[ 3406.025780][T230589] Code: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 <66> 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b\n[ 3406.055748][T230589] RSP: 0018:ffff94e4b3fc3d10 EFLAGS: 00010202\n[ 3406.065617][T230589] RAX: dead00000000005a RBX: ffff94e4b3fc3d30 RCX: 0000000000000040\n[ 3406.077477][T230589] RDX: dead000000000122 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008\n[ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000\n[ 3406.101445][T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100\n[ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 00000000000005dc R15: ffff8c3a31431000\n[ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000\n[ 3406.138992][T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0000000000350ee0\n[ 3406.162421][T230589] Call Trace:\n[ 3406.170235][T230589] <TASK>\n[ 3406.177736][T230589] mld_newpack+0xfe/0x1a0\n[ 3406.186686][T230589] add_grhead+0x87/0xa0\n[ 3406.195498][T230589] add_grec+0x485/0x4e0\n[ 3406.204310][T230589] ? newidle_balance+0x126/0x3f0\n[ 3406.214024][T230589] mld_ifc_work+0x15d/0x450\n[ 3406.223279][T230589] process_one_work+0x1e6/0x380\n[ 3406.232982][T230589] worker_thread+0x50/0x3a0\n[ 3406.242371][T230589] ? rescuer_thread+0x360/0x360\n[ 3406.252175][T230589] kthread+0x127/0x150\n[ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40\n[ 3406.271287][T230589] ret_from_fork+0x22/0x30\n[ 3406.280812][T230589] </TASK>\n[ 3406.288937][T230589] Modules linked in: ... [last unloaded: kheaders]\n[ 3406.476714][T230589] ---[ end trace 3525a7655f2f3b9e ]---"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.25", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.11", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "5.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:23:06.007Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48785", "state": "PUBLISHED", "dateUpdated": "2025-05-04T08:23:06.007Z", "dateReserved": "2024-06-20T11:09:39.069Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-16T11:13:21.118Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6467CE52-5FC4-4C7B-A594-75503B1F51B0", "versionEndExcluding": "5.15.25", "versionStartIncluding": "5.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0D327234-5D4A-43DC-A6DF-BCA0CEBEC039", "versionEndExcluding": "5.16.11", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*", "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*", "matchCriteriaId": "E6E34B23-78B4-4516-9BD8-61B33F4AC49A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*", "matchCriteriaId": "C030FA3D-03F4-4FB9-9DBF-D08E5CAC51AA", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*", "matchCriteriaId": "B2D2677C-5389-4AE9-869D-0F881E80D923", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: use rcu-safe version of ipv6_get_lladdr()\n\nSome time ago 8965779d2c0e (\"ipv6,mcast: always hold idev->lock before mca_lock\")\nswitched ipv6_get_lladdr() to __ipv6_get_lladdr(), which is rcu-unsafe\nversion. That was OK, because idev->lock was held for these codepaths.\n\nIn 88e2ca308094 (\"mld: convert ifmcaddr6 to RCU\") these external locks were\nremoved, so we probably need to restore the original rcu-safe call.\n\nOtherwise, we occasionally get a machine crashed/stalled with the following\nin dmesg:\n\n[ 3405.966610][T230589] general protection fault, probably for non-canonical address 0xdead00000000008c: 0000 [#1] SMP NOPTI\n[ 3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: G O 5.15.19-cloudflare-2022.2.1 #1\n[ 3405.998061][T230589] Hardware name: SUPA-COOL-SERV\n[ 3406.009552][T230589] Workqueue: mld mld_ifc_work\n[ 3406.017224][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60\n[ 3406.025780][T230589] Code: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 <66> 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b\n[ 3406.055748][T230589] RSP: 0018:ffff94e4b3fc3d10 EFLAGS: 00010202\n[ 3406.065617][T230589] RAX: dead00000000005a RBX: ffff94e4b3fc3d30 RCX: 0000000000000040\n[ 3406.077477][T230589] RDX: dead000000000122 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008\n[ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000\n[ 3406.101445][T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100\n[ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 00000000000005dc R15: ffff8c3a31431000\n[ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000\n[ 3406.138992][T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0000000000350ee0\n[ 3406.162421][T230589] Call Trace:\n[ 3406.170235][T230589] <TASK>\n[ 3406.177736][T230589] mld_newpack+0xfe/0x1a0\n[ 3406.186686][T230589] add_grhead+0x87/0xa0\n[ 3406.195498][T230589] add_grec+0x485/0x4e0\n[ 3406.204310][T230589] ? newidle_balance+0x126/0x3f0\n[ 3406.214024][T230589] mld_ifc_work+0x15d/0x450\n[ 3406.223279][T230589] process_one_work+0x1e6/0x380\n[ 3406.232982][T230589] worker_thread+0x50/0x3a0\n[ 3406.242371][T230589] ? rescuer_thread+0x360/0x360\n[ 3406.252175][T230589] kthread+0x127/0x150\n[ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40\n[ 3406.271287][T230589] ret_from_fork+0x22/0x30\n[ 3406.280812][T230589] </TASK>\n[ 3406.288937][T230589] Modules linked in: ... [last unloaded: kheaders]\n[ 3406.476714][T230589] ---[ end trace 3525a7655f2f3b9e ]---"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ipv6: mcast: use la versi\u00f3n rcu-safe de ipv6_get_lladdr() Hace alg\u00fan tiempo 8965779d2c0e (\"ipv6,mcast: siempre mantenga presionado idev-&gt;lock antes de mca_lock\") cambi\u00f3 ipv6_get_lladdr() a __ipv6_get_lladdr(), que es una versi\u00f3n insegura para rcu. Eso estuvo bien, porque se mantuvo idev-&gt;lock para estas rutas de c\u00f3digo. En 88e2ca308094 (\"mld: convert ifmcaddr6 to RCU\") se eliminaron estos bloqueos externos, por lo que probablemente necesitemos restaurar la llamada rcu-safe original. De lo contrario, ocasionalmente obtenemos una m\u00e1quina que falla o se bloquea con lo siguiente en dmesg: [3405.966610][T230589] falla de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdead00000000008c: 0000 [#1] SMP NOPTI [3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: GO 5.15.19-cloudflare-2022.2.1 #1 [ 3405.998061][T230589] Nombre de hardware: SUPA-COOL-SERV [ 3406.009552][T230589] Cola de trabajo: mld mld_ifc_work [ 3406 .017224 ][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60 [ 3406.025780][T230589] C\u00f3digo: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 &lt;66&gt; 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b [ 3406.055748][T230589] 0018:ffff94e4b3fc3d10 EFLAGS: 00010202 [ 3406.065617][T230589] RAX: muerto00000000005a RBX: ffff94e4b3fc3d30 RCX: 00000000000000040 [ 3406.077477][T230589] RDX: muerto0000000001 22 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008 [ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000000000 [ 34 06.101445][ T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100 [ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 0000000000 0005dc R15: ffff8c3a31431000 [ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000 [ 3406.1 38992] [T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0350ee0 [ 3406.162421][T230589] Seguimiento de llamadas: [ 3406.170235][T230589] [ 3406.177736 ] [T230589] Mld_newpack+0xfe/0x1a0 [3406.186686] [T230589] add_grhead+0x87/0xa0 [3406.195498] [T230589] add_grec+0x485/0x4e0 [3406.204310] newidle_balance+0x126/0x3f0 [ 3406.214024][T230589] mld_ifc_work+0x15d/0x450 [ 3406.223279][T230589] Process_one_work+0x1e6/0x380 [ 3406.232982][T230589] +0x50/0x3a0 [ 3406.242371][T230589] ? hilo_rescate+0x360/0x360 [ 3406.252175][T230589] kthread+0x127/0x150 [ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40 [ 3406.271287][T230589] ret_from_fork+0x22/0x30 [ 3406.280812][T230589] [ 3406.288937][T230589] M\u00f3dulos vinculados en: ... [\u00faltima descarga: kheaders] 3406.476714][T230589 ] ---[ final de seguimiento 3525a7655f2f3b9e ]---"}], "id": "CVE-2022-48785", "lastModified": "2025-10-03T14:33:16.253", "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"}]}, "published": "2024-07-16T12:15:03.493", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()", "id": "2298121", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298121"}, "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:\nipv6: mcast: use rcu-safe version of ipv6_get_lladdr()\nSome time ago 8965779d2c0e (\"ipv6,mcast: always hold idev->lock before mca_lock\")\nswitched ipv6_get_lladdr() to __ipv6_get_lladdr(), which is rcu-unsafe\nversion. That was OK, because idev->lock was held for these codepaths.\nIn 88e2ca308094 (\"mld: convert ifmcaddr6 to RCU\") these external locks were\nremoved, so we probably need to restore the original rcu-safe call.\nOtherwise, we occasionally get a machine crashed/stalled with the following\nin dmesg:\n[ 3405.966610][T230589] general protection fault, probably for non-canonical address 0xdead00000000008c: 0000 [#1] SMP NOPTI\n[ 3405.982083][T230589] CPU: 44 PID: 230589 Comm: kworker/44:3 Tainted: G O 5.15.19-cloudflare-2022.2.1 #1\n[ 3405.998061][T230589] Hardware name: SUPA-COOL-SERV\n[ 3406.009552][T230589] Workqueue: mld mld_ifc_work\n[ 3406.017224][T230589] RIP: 0010:__ipv6_get_lladdr+0x34/0x60\n[ 3406.025780][T230589] Code: 57 10 48 83 c7 08 48 89 e5 48 39 d7 74 3e 48 8d 82 38 ff ff ff eb 13 48 8b 90 d0 00 00 00 48 8d 82 38 ff ff ff 48 39 d7 74 22 <66> 83 78 32 20 77 1b 75 e4 89 ca 23 50 2c 75 dd 48 8b 50 08 48 8b\n[ 3406.055748][T230589] RSP: 0018:ffff94e4b3fc3d10 EFLAGS: 00010202\n[ 3406.065617][T230589] RAX: dead00000000005a RBX: ffff94e4b3fc3d30 RCX: 0000000000000040\n[ 3406.077477][T230589] RDX: dead000000000122 RSI: ffff94e4b3fc3d30 RDI: ffff8c3a31431008\n[ 3406.089389][T230589] RBP: ffff94e4b3fc3d10 R08: 0000000000000000 R09: 0000000000000000\n[ 3406.101445][T230589] R10: ffff8c3a31430000 R11: 000000000000000b R12: ffff8c2c37887100\n[ 3406.113553][T230589] R13: ffff8c3a39537000 R14: 00000000000005dc R15: ffff8c3a31431000\n[ 3406.125730][T230589] FS: 0000000000000000(0000) GS:ffff8c3b9fc80000(0000) knlGS:0000000000000000\n[ 3406.138992][T230589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 3406.149895][T230589] CR2: 00007f0dfea1db60 CR3: 000000387b5f2000 CR4: 0000000000350ee0\n[ 3406.162421][T230589] Call Trace:\n[ 3406.170235][T230589] <TASK>\n[ 3406.177736][T230589] mld_newpack+0xfe/0x1a0\n[ 3406.186686][T230589] add_grhead+0x87/0xa0\n[ 3406.195498][T230589] add_grec+0x485/0x4e0\n[ 3406.204310][T230589] ? newidle_balance+0x126/0x3f0\n[ 3406.214024][T230589] mld_ifc_work+0x15d/0x450\n[ 3406.223279][T230589] process_one_work+0x1e6/0x380\n[ 3406.232982][T230589] worker_thread+0x50/0x3a0\n[ 3406.242371][T230589] ? rescuer_thread+0x360/0x360\n[ 3406.252175][T230589] kthread+0x127/0x150\n[ 3406.261197][T230589] ? set_kthread_struct+0x40/0x40\n[ 3406.271287][T230589] ret_from_fork+0x22/0x30\n[ 3406.280812][T230589] </TASK>\n[ 3406.288937][T230589] Modules linked in: ... [last unloaded: kheaders]\n[ 3406.476714][T230589] ---[ end trace 3525a7655f2f3b9e ]---"], "name": "CVE-2022-48785", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48785\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48785\nhttps://lore.kernel.org/linux-cve-announce/2024071634-CVE-2022-48785-2ba2@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T15:42:23.708016+00:00", "updated": "2025-07-12T15:42:23.708073+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}