{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2023-52813", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.248Z", "datePublished": "2024-05-21T15:31:21.604Z", "dateUpdated": "2024-08-02T23:11:36.058Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:17:49.727Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: pcrypt - Fix hungtask for PADATA_RESET\n\nWe found a hungtask bug in test_aead_vec_cfg as follows:\n\nINFO: task cryptomgr_test:391009 blocked for more than 120 seconds.\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\nCall trace:\n __switch_to+0x98/0xe0\n __schedule+0x6c4/0xf40\n schedule+0xd8/0x1b4\n schedule_timeout+0x474/0x560\n wait_for_common+0x368/0x4e0\n wait_for_completion+0x20/0x30\n wait_for_completion+0x20/0x30\n test_aead_vec_cfg+0xab4/0xd50\n test_aead+0x144/0x1f0\n alg_test_aead+0xd8/0x1e0\n alg_test+0x634/0x890\n cryptomgr_test+0x40/0x70\n kthread+0x1e0/0x220\n ret_from_fork+0x10/0x18\n Kernel panic - not syncing: hung_task: blocked tasks\n\nFor padata_do_parallel, when the return err is 0 or -EBUSY, it will call\nwait_for_completion(&wait->completion) in test_aead_vec_cfg. In normal\ncase, aead_request_complete() will be called in pcrypt_aead_serial and the\nreturn err is 0 for padata_do_parallel. But, when pinst->flags is\nPADATA_RESET, the return err is -EBUSY for padata_do_parallel, and it\nwon't call aead_request_complete(). Therefore, test_aead_vec_cfg will\nhung at wait_for_completion(&wait->completion), which will cause\nhungtask.\n\nThe problem comes as following:\n(padata_do_parallel) |\n rcu_read_lock_bh(); |\n err = -EINVAL; | (padata_replace)\n | pinst->flags |= PADATA_RESET;\n err = -EBUSY |\n if (pinst->flags & PADATA_RESET) |\n rcu_read_unlock_bh() |\n return err\n\nIn order to resolve the problem, we replace the return err -EBUSY with\n-EAGAIN, which means parallel_data is changing, and the caller should call\nit again.\n\nv3:\nremove retry and just change the return err.\nv2:\nintroduce padata_try_do_parallel() in pcrypt_aead_encrypt and\npcrypt_aead_decrypt to solve the hungtask." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/pcrypt.c", "kernel/padata.c" ], "versions": [ { "version": "1da177e4c3f4", "lessThan": "fb2d3a50a8f2", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "039fec48e062", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "c9c133469730", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "e97bf4ada7dd", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "546c1796ad1e", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "c55fc098fd9d", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "e134f3aba98e", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "372636debe85", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "8f4f68e788c3", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/pcrypt.c", "kernel/padata.c" ], "versions": [ { "version": "4.14.331", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.300", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.262", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.202", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.140", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/fb2d3a50a8f29a3c66682bb426144f40e32ab818" }, { "url": "https://git.kernel.org/stable/c/039fec48e062504f14845124a1a25eb199b2ddc0" }, { "url": "https://git.kernel.org/stable/c/c9c1334697301c10e6918d747ed38abfbc0c96e7" }, { "url": "https://git.kernel.org/stable/c/e97bf4ada7dddacd184c3e196bd063b0dc71b41d" }, { "url": "https://git.kernel.org/stable/c/546c1796ad1ed0d87dab3c4b5156d75819be2316" }, { "url": "https://git.kernel.org/stable/c/c55fc098fd9d2dca475b82d00ffbcaf97879d77e" }, { "url": "https://git.kernel.org/stable/c/e134f3aba98e6c801a693f540912c2d493718ddf" }, { "url": "https://git.kernel.org/stable/c/372636debe852913529b1716f44addd94fff2d28" }, { "url": "https://git.kernel.org/stable/c/8f4f68e788c3a7a696546291258bfa5fdb215523" } ], "title": "crypto: pcrypt - Fix hungtask for PADATA_RESET", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52813", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-05-23T17:18:51.048604Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:24:13.216Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.058Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/fb2d3a50a8f29a3c66682bb426144f40e32ab818", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/039fec48e062504f14845124a1a25eb199b2ddc0", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/c9c1334697301c10e6918d747ed38abfbc0c96e7", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e97bf4ada7dddacd184c3e196bd063b0dc71b41d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/546c1796ad1ed0d87dab3c4b5156d75819be2316", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/c55fc098fd9d2dca475b82d00ffbcaf97879d77e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e134f3aba98e6c801a693f540912c2d493718ddf", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/372636debe852913529b1716f44addd94fff2d28", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8f4f68e788c3a7a696546291258bfa5fdb215523", "tags": [ "x_transferred" ] } ] } ] } }