ghsa-p9v2-frmw-64xc
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid
mkdir /mnt/test/comp f2fs_io setflags compression /mnt/test/comp dd if=/dev/zero of=/mnt/test/comp/testfile bs=16k count=1 truncate --size 13 /mnt/test/comp/testfile
In the above scenario, we can get a BUG_ON. kernel BUG at fs/f2fs/segment.c:3589! Call Trace: do_write_page+0x78/0x390 [f2fs] f2fs_outplace_write_data+0x62/0xb0 [f2fs] f2fs_do_write_data_page+0x275/0x740 [f2fs] f2fs_write_single_data_page+0x1dc/0x8f0 [f2fs] f2fs_write_multi_pages+0x1e5/0xae0 [f2fs] f2fs_write_cache_pages+0xab1/0xc60 [f2fs] f2fs_write_data_pages+0x2d8/0x330 [f2fs] do_writepages+0xcf/0x270 __writeback_single_inode+0x44/0x350 writeback_sb_inodes+0x242/0x530 __writeback_inodes_wb+0x54/0xf0 wb_writeback+0x192/0x310 wb_workfn+0x30d/0x400
The reason is we gave CURSEG_ALL_DATA_ATGC to COMPR_ADDR where the page was set the gcing flag by set_cluster_dirty().
{
"affected": [],
"aliases": [
"CVE-2024-42273"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-17T09:15:08Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid\n\nmkdir /mnt/test/comp\nf2fs_io setflags compression /mnt/test/comp\ndd if=/dev/zero of=/mnt/test/comp/testfile bs=16k count=1\ntruncate --size 13 /mnt/test/comp/testfile\n\nIn the above scenario, we can get a BUG_ON.\n kernel BUG at fs/f2fs/segment.c:3589!\n Call Trace:\n do_write_page+0x78/0x390 [f2fs]\n f2fs_outplace_write_data+0x62/0xb0 [f2fs]\n f2fs_do_write_data_page+0x275/0x740 [f2fs]\n f2fs_write_single_data_page+0x1dc/0x8f0 [f2fs]\n f2fs_write_multi_pages+0x1e5/0xae0 [f2fs]\n f2fs_write_cache_pages+0xab1/0xc60 [f2fs]\n f2fs_write_data_pages+0x2d8/0x330 [f2fs]\n do_writepages+0xcf/0x270\n __writeback_single_inode+0x44/0x350\n writeback_sb_inodes+0x242/0x530\n __writeback_inodes_wb+0x54/0xf0\n wb_writeback+0x192/0x310\n wb_workfn+0x30d/0x400\n\nThe reason is we gave CURSEG_ALL_DATA_ATGC to COMPR_ADDR where the\npage was set the gcing flag by set_cluster_dirty().",
"id": "GHSA-p9v2-frmw-64xc",
"modified": "2024-08-17T09:30:24Z",
"published": "2024-08-17T09:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42273"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0cd106612396656d6f1ca17ef192c6759bb60791"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4239571c5db46a42f723b8fa8394039187c34439"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fd057160ab240dd816ae09b625395d54c297de1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8cb1f4080dd91c6e6b01dbea013a3f42341cb6a1"
}
],
"schema_version": "1.4.0",
"severity": []
}
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