| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\n\nA crash was found when dumping SMC-D connections. It can be reproduced\nby following steps:\n\n- run nginx/wrk test:\n smc_run nginx\n smc_run wrk -t 16 -c 1000 -d <duration> -H 'Connection: Close' <URL>\n\n- continuously dump SMC-D connections in parallel:\n watch -n 1 'smcss -D'\n\n BUG: kernel NULL pointer dereference, address: 0000000000000030\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\tE 6.7.0+ #55\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n Call Trace:\n <TASK>\n ? __die+0x24/0x70\n ? page_fault_oops+0x66/0x150\n ? exc_page_fault+0x69/0x140\n ? asm_exc_page_fault+0x26/0x30\n ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n ? __kmalloc_node_track_caller+0x35d/0x430\n ? __alloc_skb+0x77/0x170\n smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\n smc_diag_dump+0x26/0x60 [smc_diag]\n netlink_dump+0x19f/0x320\n __netlink_dump_start+0x1dc/0x300\n smc_diag_handler_dump+0x6a/0x80 [smc_diag]\n ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\n sock_diag_rcv_msg+0x121/0x140\n ? __pfx_sock_diag_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x5a/0x110\n sock_diag_rcv+0x28/0x40\n netlink_unicast+0x22a/0x330\n netlink_sendmsg+0x1f8/0x420\n __sock_sendmsg+0xb0/0xc0\n ____sys_sendmsg+0x24e/0x300\n ? copy_msghdr_from_user+0x62/0x80\n ___sys_sendmsg+0x7c/0xd0\n ? __do_fault+0x34/0x160\n ? do_read_fault+0x5f/0x100\n ? do_fault+0xb0/0x110\n ? __handle_mm_fault+0x2b0/0x6c0\n __sys_sendmsg+0x4d/0x80\n do_syscall_64+0x69/0x180\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n\nIt is possible that the connection is in process of being established\nwhen we dump it. Assumed that the connection has been registered in a\nlink group by smc_conn_create() but the rmb_desc has not yet been\ninitialized by smc_buf_create(), thus causing the illegal access to\nconn->rmb_desc. So fix it by checking before dump." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/smc/smc_diag.c" |
| ], |
| "versions": [ |
| { |
| "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", |
| "lessThan": "27aea64838914c6122db5b8bd4bed865c9736f22", |
| "status": "affected", |
| "versionType": "git" |
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| { |
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| "lessThan": "1fea9969b81c67d0cb1611d1b8b7d19049d937be", |
| "status": "affected", |
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| }, |
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| "lessThan": "5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d", |
| "status": "affected", |
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| }, |
| { |
| "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", |
| "lessThan": "68b888d51ac82f2b96bf5e077a31d76afcdef25a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", |
| "lessThan": "6994dba06321e3c48fdad0ba796a063d9d82183a", |
| "status": "affected", |
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| }, |
| { |
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| "lessThan": "a164c2922675d7051805cdaf2b07daffe44f20d9", |
| "status": "affected", |
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| }, |
| { |
| "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", |
| "lessThan": "8f3f9186e5bb96a9c9654c41653210e3ea7e48a6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", |
| "lessThan": "dbc153fd3c142909e564bb256da087e13fbf239c", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/smc/smc_diag.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.19", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.307", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.269", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.210", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.149", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.76", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.15", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.7.3", |
| "lessThanOrEqual": "6.7.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8", |
| "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": "4.19", |
| "versionEndExcluding": "4.19.307" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19", |
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| }, |
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| }, |
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| }, |
| { |
| "vulnerable": true, |
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| }, |
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| "versionStartIncluding": "4.19", |
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| }, |
| { |
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| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "6.7.3" |
| }, |
| { |
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| "versionStartIncluding": "4.19", |
| "versionEndExcluding": "6.8" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c" |
| } |
| ], |
| "title": "net/smc: fix illegal rmb_desc access in SMC-D connection dump", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26615", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
