gsd-2024-26848
Vulnerability from gsd
Modified
2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved:
afs: Fix endless loop in directory parsing
If a directory has a block with only ".__afsXXXX" files in it (from
uncompleted silly-rename), these .__afsXXXX files are skipped but without
advancing the file position in the dir_context. This leads to
afs_dir_iterate() repeating the block again and again.
Fix this by making the code that skips the .__afsXXXX file also manually
advance the file position.
The symptoms are a soft lookup:
watchdog: BUG: soft lockup - CPU#3 stuck for 52s! [check:5737]
...
RIP: 0010:afs_dir_iterate_block+0x39/0x1fd
...
? watchdog_timer_fn+0x1a6/0x213
...
? asm_sysvec_apic_timer_interrupt+0x16/0x20
? afs_dir_iterate_block+0x39/0x1fd
afs_dir_iterate+0x10a/0x148
afs_readdir+0x30/0x4a
iterate_dir+0x93/0xd3
__do_sys_getdents64+0x6b/0xd4
This is almost certainly the actual fix for:
https://bugzilla.kernel.org/show_bug.cgi?id=218496
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2024-26848" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix endless loop in directory parsing\n\nIf a directory has a block with only \".__afsXXXX\" files in it (from\nuncompleted silly-rename), these .__afsXXXX files are skipped but without\nadvancing the file position in the dir_context. This leads to\nafs_dir_iterate() repeating the block again and again.\n\nFix this by making the code that skips the .__afsXXXX file also manually\nadvance the file position.\n\nThe symptoms are a soft lookup:\n\n watchdog: BUG: soft lockup - CPU#3 stuck for 52s! [check:5737]\n ...\n RIP: 0010:afs_dir_iterate_block+0x39/0x1fd\n ...\n ? watchdog_timer_fn+0x1a6/0x213\n ...\n ? asm_sysvec_apic_timer_interrupt+0x16/0x20\n ? afs_dir_iterate_block+0x39/0x1fd\n afs_dir_iterate+0x10a/0x148\n afs_readdir+0x30/0x4a\n iterate_dir+0x93/0xd3\n __do_sys_getdents64+0x6b/0xd4\n\nThis is almost certainly the actual fix for:\n\n https://bugzilla.kernel.org/show_bug.cgi?id=218496", "id": "GSD-2024-26848", "modified": "2024-02-20T06:02:29.202231Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2024-26848", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "01d15b68f041", "version_value": "5c78be006ed9" }, { "version_affected": "\u003c", "version_name": "8499e2f1218e", "version_value": "96370ba395c5" }, { "version_affected": "\u003c", "version_name": "21a2115e0ca0", "version_value": "80b15346492b" }, { "version_affected": "\u003c", "version_name": "ab49164c6080", "version_value": "058ed71e0f7a" }, { "version_affected": "\u003c", "version_name": "a53411e805e0", "version_value": "f67898867b6b" }, { "version_affected": "\u003c", "version_name": "fa70c6954aab", "version_value": "fe02316e4933" }, { "version_affected": "\u003c", "version_name": "57e9d49c5452", "version_value": "5f7a07646655" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "status": "affected", "version": "6.8" }, { "lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "custom" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.271", "versionType": "custom" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.273", "versionType": "custom" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.212", "versionType": "custom" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.214", "versionType": "custom" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.151", "versionType": "custom" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.153", "versionType": "custom" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.81", "versionType": "custom" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.83", "versionType": "custom" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.21", "versionType": "custom" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.23", "versionType": "custom" }, { "lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.9", "versionType": "custom" }, { "lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.11", "versionType": "custom" }, { "lessThanOrEqual": "6.8.*", "status": "unaffected", "version": "6.8.2", "versionType": "custom" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix endless loop in directory parsing\n\nIf a directory has a block with only \".__afsXXXX\" files in it (from\nuncompleted silly-rename), these .__afsXXXX files are skipped but without\nadvancing the file position in the dir_context. This leads to\nafs_dir_iterate() repeating the block again and again.\n\nFix this by making the code that skips the .__afsXXXX file also manually\nadvance the file position.\n\nThe symptoms are a soft lookup:\n\n watchdog: BUG: soft lockup - CPU#3 stuck for 52s! [check:5737]\n ...\n RIP: 0010:afs_dir_iterate_block+0x39/0x1fd\n ...\n ? watchdog_timer_fn+0x1a6/0x213\n ...\n ? asm_sysvec_apic_timer_interrupt+0x16/0x20\n ? afs_dir_iterate_block+0x39/0x1fd\n afs_dir_iterate+0x10a/0x148\n afs_readdir+0x30/0x4a\n iterate_dir+0x93/0xd3\n __do_sys_getdents64+0x6b/0xd4\n\nThis is almost certainly the actual fix for:\n\n https://bugzilla.kernel.org/show_bug.cgi?id=218496" } ] }, "generator": { "engine": "bippy-d175d3acf727" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/5c78be006ed9cb735ac2abf4fd64f3f4ea26da31", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/5c78be006ed9cb735ac2abf4fd64f3f4ea26da31" }, { "name": "https://git.kernel.org/stable/c/854ebf45a4ddd4cadeffb6644e88d19020634e1a", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/854ebf45a4ddd4cadeffb6644e88d19020634e1a" }, { "name": "https://git.kernel.org/stable/c/96370ba395c572ef496fd2c7afc4a1ab3dedd3f0", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/96370ba395c572ef496fd2c7afc4a1ab3dedd3f0" }, { "name": "https://git.kernel.org/stable/c/b94f434fe977689da4291dc21717790b9bd1c064", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/b94f434fe977689da4291dc21717790b9bd1c064" }, { "name": "https://git.kernel.org/stable/c/80b15346492bdba677bbb0adefc611910e505f7b", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/80b15346492bdba677bbb0adefc611910e505f7b" }, { "name": "https://git.kernel.org/stable/c/a6ffae61ad9ebf2fdcb943135b2f30c85f49cd27", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/a6ffae61ad9ebf2fdcb943135b2f30c85f49cd27" }, { "name": "https://git.kernel.org/stable/c/058ed71e0f7aa3b6694ca357e23d084e5d3f2470", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/058ed71e0f7aa3b6694ca357e23d084e5d3f2470" }, { "name": "https://git.kernel.org/stable/c/76426abf9b980b46983f97de8e5b25047b4c9863", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/76426abf9b980b46983f97de8e5b25047b4c9863" }, { "name": "https://git.kernel.org/stable/c/f67898867b6b0f4542cddc7fe57997978b948a7a", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/f67898867b6b0f4542cddc7fe57997978b948a7a" }, { "name": "https://git.kernel.org/stable/c/106e14ca55a0acb3236ee98813a1d243f8aa2d05", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/106e14ca55a0acb3236ee98813a1d243f8aa2d05" }, { "name": "https://git.kernel.org/stable/c/fe02316e4933befc621fa125efb8f8b4d04cceec", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/fe02316e4933befc621fa125efb8f8b4d04cceec" }, { "name": "https://git.kernel.org/stable/c/9c41f4935625218a2053a2dce1423c3054169809", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/9c41f4935625218a2053a2dce1423c3054169809" }, { "name": "https://git.kernel.org/stable/c/5f7a07646655fb4108da527565dcdc80124b14c4", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/5f7a07646655fb4108da527565dcdc80124b14c4" }, { "name": "https://git.kernel.org/stable/c/2afdd0cb02329464d77f3ec59468395c791a51a4", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/2afdd0cb02329464d77f3ec59468395c791a51a4" } ] } }, "nvd.nist.gov": { "cve": { "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix endless loop in directory parsing\n\nIf a directory has a block with only \".__afsXXXX\" files in it (from\nuncompleted silly-rename), these .__afsXXXX files are skipped but without\nadvancing the file position in the dir_context. This leads to\nafs_dir_iterate() repeating the block again and again.\n\nFix this by making the code that skips the .__afsXXXX file also manually\nadvance the file position.\n\nThe symptoms are a soft lookup:\n\n watchdog: BUG: soft lockup - CPU#3 stuck for 52s! [check:5737]\n ...\n RIP: 0010:afs_dir_iterate_block+0x39/0x1fd\n ...\n ? watchdog_timer_fn+0x1a6/0x213\n ...\n ? asm_sysvec_apic_timer_interrupt+0x16/0x20\n ? afs_dir_iterate_block+0x39/0x1fd\n afs_dir_iterate+0x10a/0x148\n afs_readdir+0x30/0x4a\n iterate_dir+0x93/0xd3\n __do_sys_getdents64+0x6b/0xd4\n\nThis is almost certainly the actual fix for:\n\n https://bugzilla.kernel.org/show_bug.cgi?id=218496" } ], "id": "CVE-2024-26848", "lastModified": "2024-04-17T12:48:07.510", "metrics": {}, "published": "2024-04-17T11:15:08.323", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/058ed71e0f7aa3b6694ca357e23d084e5d3f2470" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/106e14ca55a0acb3236ee98813a1d243f8aa2d05" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2afdd0cb02329464d77f3ec59468395c791a51a4" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c78be006ed9cb735ac2abf4fd64f3f4ea26da31" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5f7a07646655fb4108da527565dcdc80124b14c4" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76426abf9b980b46983f97de8e5b25047b4c9863" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80b15346492bdba677bbb0adefc611910e505f7b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/854ebf45a4ddd4cadeffb6644e88d19020634e1a" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/96370ba395c572ef496fd2c7afc4a1ab3dedd3f0" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c41f4935625218a2053a2dce1423c3054169809" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6ffae61ad9ebf2fdcb943135b2f30c85f49cd27" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b94f434fe977689da4291dc21717790b9bd1c064" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f67898867b6b0f4542cddc7fe57997978b948a7a" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fe02316e4933befc621fa125efb8f8b4d04cceec" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" } } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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