| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix listen() setting the bar too high for the prealloc rings\n\nAF_RXRPC's listen() handler lets you set the backlog up to 32 (if you bump\nup the sysctl), but whilst the preallocation circular buffers have 32 slots\nin them, one of them has to be a dead slot because we're using CIRC_CNT().\n\nThis means that listen(rxrpc_sock, 32) will cause an oops when the socket\nis closed because rxrpc_service_prealloc_one() allocated one too many calls\nand rxrpc_discard_prealloc() won't then be able to get rid of them because\nit'll think the ring is empty. rxrpc_release_calls_on_socket() then tries\nto abort them, but oopses because call->peer isn't yet set.\n\nFix this by setting the maximum backlog to RXRPC_BACKLOG_MAX - 1 to match\nthe ring capacity.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000086\n ...\n RIP: 0010:rxrpc_send_abort_packet+0x73/0x240 [rxrpc]\n Call Trace:\n <TASK>\n ? __wake_up_common_lock+0x7a/0x90\n ? rxrpc_notify_socket+0x8e/0x140 [rxrpc]\n ? rxrpc_abort_call+0x4c/0x60 [rxrpc]\n rxrpc_release_calls_on_socket+0x107/0x1a0 [rxrpc]\n rxrpc_release+0xc9/0x1c0 [rxrpc]\n __sock_release+0x37/0xa0\n sock_close+0x11/0x20\n __fput+0x89/0x240\n task_work_run+0x59/0x90\n do_exit+0x319/0xaa0" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/rxrpc/sysctl.c" |
| ], |
| "versions": [ |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "61fb38cfbb1d54d3dafd0c25752f684b3cd00b32", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "616f76498d5ddf26b997caf64a95cda3c8a55533", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "4a3a78b7918bdd723d8c7c9786522ca969bffcc4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "91b34bf0409f43bb60453bab23c5beadd726d022", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "5b4826657d36c218e9f08e8d3223b0edce3de88f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "b3a9b227d5e7467b8518160ff034ea22bb9de573", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "369de57492c4f1a42563c5a3bd365822ca3bfc79", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "e198f1930050e3115c80b67d9249f80f98a27c67", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61", |
| "lessThan": "88e22159750b0d55793302eeed8ee603f5c1a95c", |
| "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/rxrpc/sysctl.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.9", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.9", |
| "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": "5.10.121", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.46", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17.14", |
| "lessThanOrEqual": "5.17.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.18.3", |
| "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": "4.9", |
| "versionEndExcluding": "4.9.318" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "4.14.283" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "4.19.247" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.4.198" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.10.121" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.15.46" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.17.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.18.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.19" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/61fb38cfbb1d54d3dafd0c25752f684b3cd00b32" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/616f76498d5ddf26b997caf64a95cda3c8a55533" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4a3a78b7918bdd723d8c7c9786522ca969bffcc4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/91b34bf0409f43bb60453bab23c5beadd726d022" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5b4826657d36c218e9f08e8d3223b0edce3de88f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b3a9b227d5e7467b8518160ff034ea22bb9de573" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/369de57492c4f1a42563c5a3bd365822ca3bfc79" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e198f1930050e3115c80b67d9249f80f98a27c67" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/88e22159750b0d55793302eeed8ee603f5c1a95c" |
| } |
| ], |
| "title": "rxrpc: Fix listen() setting the bar too high for the prealloc rings", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-49450", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
