CVE-2023-52813 (GCVE-0-2023-52813)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:31 – Updated: 2025-07-15 15:43
VLAI?
Title
crypto: pcrypt - Fix hungtask for PADATA_RESET
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix hungtask for PADATA_RESET We found a hungtask bug in test_aead_vec_cfg as follows: INFO: task cryptomgr_test:391009 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Call trace: __switch_to+0x98/0xe0 __schedule+0x6c4/0xf40 schedule+0xd8/0x1b4 schedule_timeout+0x474/0x560 wait_for_common+0x368/0x4e0 wait_for_completion+0x20/0x30 wait_for_completion+0x20/0x30 test_aead_vec_cfg+0xab4/0xd50 test_aead+0x144/0x1f0 alg_test_aead+0xd8/0x1e0 alg_test+0x634/0x890 cryptomgr_test+0x40/0x70 kthread+0x1e0/0x220 ret_from_fork+0x10/0x18 Kernel panic - not syncing: hung_task: blocked tasks For padata_do_parallel, when the return err is 0 or -EBUSY, it will call wait_for_completion(&wait->completion) in test_aead_vec_cfg. In normal case, aead_request_complete() will be called in pcrypt_aead_serial and the return err is 0 for padata_do_parallel. But, when pinst->flags is PADATA_RESET, the return err is -EBUSY for padata_do_parallel, and it won't call aead_request_complete(). Therefore, test_aead_vec_cfg will hung at wait_for_completion(&wait->completion), which will cause hungtask. The problem comes as following: (padata_do_parallel) | rcu_read_lock_bh(); | err = -EINVAL; | (padata_replace) | pinst->flags |= PADATA_RESET; err = -EBUSY | if (pinst->flags & PADATA_RESET) | rcu_read_unlock_bh() | return err In order to resolve the problem, we replace the return err -EBUSY with -EAGAIN, which means parallel_data is changing, and the caller should call it again. v3: remove retry and just change the return err. v2: introduce padata_try_do_parallel() in pcrypt_aead_encrypt and pcrypt_aead_decrypt to solve the hungtask.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < fb2d3a50a8f29a3c66682bb426144f40e32ab818 (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < 039fec48e062504f14845124a1a25eb199b2ddc0 (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < c9c1334697301c10e6918d747ed38abfbc0c96e7 (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < e97bf4ada7dddacd184c3e196bd063b0dc71b41d (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < 546c1796ad1ed0d87dab3c4b5156d75819be2316 (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < c55fc098fd9d2dca475b82d00ffbcaf97879d77e (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < e134f3aba98e6c801a693f540912c2d493718ddf (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < 372636debe852913529b1716f44addd94fff2d28 (git)
Affected: 16295bec6398a3eedc9377e1af6ff4c71b98c300 , < 8f4f68e788c3a7a696546291258bfa5fdb215523 (git)
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    Linux Linux Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (semver)
Unaffected: 4.14.331 , ≤ 4.14.* (semver)
Unaffected: 4.19.300 , ≤ 4.19.* (semver)
Unaffected: 5.4.262 , ≤ 5.4.* (semver)
Unaffected: 5.10.202 , ≤ 5.10.* (semver)
Unaffected: 5.15.140 , ≤ 5.15.* (semver)
Unaffected: 6.1.64 , ≤ 6.1.* (semver)
Unaffected: 6.5.13 , ≤ 6.5.* (semver)
Unaffected: 6.6.3 , ≤ 6.6.* (semver)
Unaffected: 6.7 , ≤ * (original_commit_for_fix)
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Fix hungtask for PADATA_RESET\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"fb2d3a50a8f29a3c66682bb426144f40e32ab818\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"039fec48e062504f14845124a1a25eb199b2ddc0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"c9c1334697301c10e6918d747ed38abfbc0c96e7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"e97bf4ada7dddacd184c3e196bd063b0dc71b41d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"546c1796ad1ed0d87dab3c4b5156d75819be2316\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"c55fc098fd9d2dca475b82d00ffbcaf97879d77e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"e134f3aba98e6c801a693f540912c2d493718ddf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"372636debe852913529b1716f44addd94fff2d28\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16295bec6398a3eedc9377e1af6ff4c71b98c300\", \"lessThan\": \"8f4f68e788c3a7a696546291258bfa5fdb215523\", \"versionType\": \"git\"}], \"programFiles\": [\"crypto/pcrypt.c\", \"kernel/padata.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.34\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.34\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.331\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.300\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.262\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.202\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.140\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"crypto/pcrypt.c\", \"kernel/padata.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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 \u003e /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(\u0026wait-\u003ecompletion) 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-\u003eflags is\\nPADATA_RESET, the return err is -EBUSY for padata_do_parallel, and it\\nwon\u0027t call aead_request_complete(). Therefore, test_aead_vec_cfg will\\nhung at wait_for_completion(\u0026wait-\u003ecompletion), 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-\u003eflags |= PADATA_RESET;\\n    err = -EBUSY                     |\\n    if (pinst-\u003eflags \u0026 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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.331\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.300\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.262\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.202\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.140\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.64\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.13\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.3\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7\", \"versionStartIncluding\": \"2.6.34\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-07-15T15:43:50.801Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52813\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-15T15:43:50.801Z\", \"dateReserved\": \"2024-05-21T15:19:24.248Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:31:21.604Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.