| { |
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| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix potential kernel bug due to lack of writeback flag waiting\n\nDestructive writes to a block device on which nilfs2 is mounted can cause\na kernel bug in the folio/page writeback start routine or writeback end\nroutine (__folio_start_writeback in the log below):\n\n kernel BUG at mm/page-writeback.c:3070!\n Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\n ...\n RIP: 0010:__folio_start_writeback+0xbaa/0x10e0\n Code: 25 ff 0f 00 00 0f 84 18 01 00 00 e8 40 ca c6 ff e9 17 f6 ff ff\n e8 36 ca c6 ff 4c 89 f7 48 c7 c6 80 c0 12 84 e8 e7 b3 0f 00 90 <0f>\n 0b e8 1f ca c6 ff 4c 89 f7 48 c7 c6 a0 c6 12 84 e8 d0 b3 0f 00\n ...\n Call Trace:\n <TASK>\n nilfs_segctor_do_construct+0x4654/0x69d0 [nilfs2]\n nilfs_segctor_construct+0x181/0x6b0 [nilfs2]\n nilfs_segctor_thread+0x548/0x11c0 [nilfs2]\n kthread+0x2f0/0x390\n ret_from_fork+0x4b/0x80\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nThis is because when the log writer starts a writeback for segment summary\nblocks or a super root block that use the backing device's page cache, it\ndoes not wait for the ongoing folio/page writeback, resulting in an\ninconsistent writeback state.\n\nFix this issue by waiting for ongoing writebacks when putting\nfolios/pages on the backing device into writeback state." |
| } |
| ], |
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| { |
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| "product": "Linux", |
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| "programFiles": [ |
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| "versionType": "original_commit_for_fix" |
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| { |
| "nodes": [ |
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| "operator": "OR", |
| "negate": false, |
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| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/95f6f81e50d858a7c9aa7c795ec14a0ac3819118" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a75b8f493dfc48aa38c518430bd9e03b53bffebe" |
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| { |
| "url": "https://git.kernel.org/stable/c/0ecfe3a92869a59668d27228dabbd7965e83567f" |
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| { |
| "url": "https://git.kernel.org/stable/c/33900d7eae616647e179eee1c66ebe654ee39627" |
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| "url": "https://git.kernel.org/stable/c/271dcd977ccda8c7a26e360425ae7b4db7d2ecc0" |
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| { |
| "url": "https://git.kernel.org/stable/c/a4ca369ca221bb7e06c725792ac107f0e48e82e7" |
| } |
| ], |
| "title": "nilfs2: fix potential kernel bug due to lack of writeback flag waiting", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
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| "cveID": "CVE-2024-37078", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
