CVE-2024-53052 (GCVE-0-2024-53052)

Vulnerability from cvelistv5 – Published: 2024-11-19 17:19 – Updated: 2025-11-03 22:28
VLAI?
Title
io_uring/rw: fix missing NOWAIT check for O_DIRECT start write
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: fix missing NOWAIT check for O_DIRECT start write When io_uring starts a write, it'll call kiocb_start_write() to bump the super block rwsem, preventing any freezes from happening while that write is in-flight. The freeze side will grab that rwsem for writing, excluding any new writers from happening and waiting for existing writes to finish. But io_uring unconditionally uses kiocb_start_write(), which will block if someone is currently attempting to freeze the mount point. This causes a deadlock where freeze is waiting for previous writes to complete, but the previous writes cannot complete, as the task that is supposed to complete them is blocked waiting on starting a new write. This results in the following stuck trace showing that dependency with the write blocked starting a new write: task:fio state:D stack:0 pid:886 tgid:886 ppid:876 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_rwsem_wait+0x1e8/0x3f8 __percpu_down_read+0xe8/0x500 io_write+0xbb8/0xff8 io_issue_sqe+0x10c/0x1020 io_submit_sqes+0x614/0x2110 __arm64_sys_io_uring_enter+0x524/0x1038 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170 INFO: task fsfreeze:7364 blocked for more than 15 seconds. Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963 with the attempting freezer stuck trying to grab the rwsem: task:fsfreeze state:D stack:0 pid:7364 tgid:7364 ppid:995 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_down_write+0x2b0/0x680 freeze_super+0x248/0x8a8 do_vfs_ioctl+0x149c/0x1b18 __arm64_sys_ioctl+0xd0/0x1a0 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170 Fix this by having the io_uring side honor IOCB_NOWAIT, and only attempt a blocking grab of the super block rwsem if it isn't set. For normal issue where IOCB_NOWAIT would always be set, this returns -EAGAIN which will have io_uring core issue a blocking attempt of the write. That will in turn also get completions run, ensuring forward progress. Since freezing requires CAP_SYS_ADMIN in the first place, this isn't something that can be triggered by a regular user.
Severity ?
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 485d9232112b17f389b29497ff41b97b3189546b (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 4e24041ba86d50aaa4c792ae2c88ed01b3d96243 (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 9e8debb8e51354b201db494689198078ec2c1e75 (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 003d2996964c03dfd34860500428f4cdf1f5879e (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 26b8c48f369b7591f5679e0b90612f4862a32929 (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 1d60d74e852647255bd8e76f5a22dc42531e4389 (git)
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    Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.10.230 , ≤ 5.10.* (semver)
Unaffected: 5.15.172 , ≤ 5.15.* (semver)
Unaffected: 6.1.116 , ≤ 6.1.* (semver)
Unaffected: 6.6.60 , ≤ 6.6.* (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:28:47.559Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-53052\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T20:13:08.688394Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:29:21.813Z\"}}], \"cna\": {\"title\": \"io_uring/rw: fix missing NOWAIT check for O_DIRECT start write\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"485d9232112b17f389b29497ff41b97b3189546b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"4e24041ba86d50aaa4c792ae2c88ed01b3d96243\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"9e8debb8e51354b201db494689198078ec2c1e75\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"003d2996964c03dfd34860500428f4cdf1f5879e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"26b8c48f369b7591f5679e0b90612f4862a32929\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b188cc1bb857a9d4701ae59aa7768b5124e262e\", \"lessThan\": \"1d60d74e852647255bd8e76f5a22dc42531e4389\", \"versionType\": \"git\"}], \"programFiles\": [\"io_uring/rw.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.230\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.172\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.116\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.60\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"io_uring/rw.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/485d9232112b17f389b29497ff41b97b3189546b\"}, {\"url\": \"https://git.kernel.org/stable/c/4e24041ba86d50aaa4c792ae2c88ed01b3d96243\"}, {\"url\": \"https://git.kernel.org/stable/c/9e8debb8e51354b201db494689198078ec2c1e75\"}, {\"url\": \"https://git.kernel.org/stable/c/003d2996964c03dfd34860500428f4cdf1f5879e\"}, {\"url\": \"https://git.kernel.org/stable/c/26b8c48f369b7591f5679e0b90612f4862a32929\"}, {\"url\": \"https://git.kernel.org/stable/c/1d60d74e852647255bd8e76f5a22dc42531e4389\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nio_uring/rw: fix missing NOWAIT check for O_DIRECT start write\\n\\nWhen io_uring starts a write, it\u0027ll call kiocb_start_write() to bump the\\nsuper block rwsem, preventing any freezes from happening while that\\nwrite is in-flight. The freeze side will grab that rwsem for writing,\\nexcluding any new writers from happening and waiting for existing writes\\nto finish. But io_uring unconditionally uses kiocb_start_write(), which\\nwill block if someone is currently attempting to freeze the mount point.\\nThis causes a deadlock where freeze is waiting for previous writes to\\ncomplete, but the previous writes cannot complete, as the task that is\\nsupposed to complete them is blocked waiting on starting a new write.\\nThis results in the following stuck trace showing that dependency with\\nthe write blocked starting a new write:\\n\\ntask:fio             state:D stack:0     pid:886   tgid:886   ppid:876\\nCall trace:\\n __switch_to+0x1d8/0x348\\n __schedule+0x8e8/0x2248\\n schedule+0x110/0x3f0\\n percpu_rwsem_wait+0x1e8/0x3f8\\n __percpu_down_read+0xe8/0x500\\n io_write+0xbb8/0xff8\\n io_issue_sqe+0x10c/0x1020\\n io_submit_sqes+0x614/0x2110\\n __arm64_sys_io_uring_enter+0x524/0x1038\\n invoke_syscall+0x74/0x268\\n el0_svc_common.constprop.0+0x160/0x238\\n do_el0_svc+0x44/0x60\\n el0_svc+0x44/0xb0\\n el0t_64_sync_handler+0x118/0x128\\n el0t_64_sync+0x168/0x170\\nINFO: task fsfreeze:7364 blocked for more than 15 seconds.\\n      Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963\\n\\nwith the attempting freezer stuck trying to grab the rwsem:\\n\\ntask:fsfreeze        state:D stack:0     pid:7364  tgid:7364  ppid:995\\nCall trace:\\n __switch_to+0x1d8/0x348\\n __schedule+0x8e8/0x2248\\n schedule+0x110/0x3f0\\n percpu_down_write+0x2b0/0x680\\n freeze_super+0x248/0x8a8\\n do_vfs_ioctl+0x149c/0x1b18\\n __arm64_sys_ioctl+0xd0/0x1a0\\n invoke_syscall+0x74/0x268\\n el0_svc_common.constprop.0+0x160/0x238\\n do_el0_svc+0x44/0x60\\n el0_svc+0x44/0xb0\\n el0t_64_sync_handler+0x118/0x128\\n el0t_64_sync+0x168/0x170\\n\\nFix this by having the io_uring side honor IOCB_NOWAIT, and only attempt a\\nblocking grab of the super block rwsem if it isn\u0027t set. For normal issue\\nwhere IOCB_NOWAIT would always be set, this returns -EAGAIN which will\\nhave io_uring core issue a blocking attempt of the write. That will in\\nturn also get completions run, ensuring forward progress.\\n\\nSince freezing requires CAP_SYS_ADMIN in the first place, this isn\u0027t\\nsomething that can be triggered by a regular user.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.230\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.172\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.116\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.60\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.7\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"5.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:51:47.057Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-53052\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:28:47.559Z\", \"dateReserved\": \"2024-11-19T17:17:24.973Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-19T17:19:37.067Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.