CVE-2024-43859 (GCVE-0-2024-43859)
Vulnerability from cvelistv5
Published
2024-08-17 09:24
Modified
2025-05-04 09:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate preallocated blocks in f2fs_file_open() chenyuwen reports a f2fs bug as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000011 fscrypt_set_bio_crypt_ctx+0x78/0x1e8 f2fs_grab_read_bio+0x78/0x208 f2fs_submit_page_read+0x44/0x154 f2fs_get_read_data_page+0x288/0x5f4 f2fs_get_lock_data_page+0x60/0x190 truncate_partial_data_page+0x108/0x4fc f2fs_do_truncate_blocks+0x344/0x5f0 f2fs_truncate_blocks+0x6c/0x134 f2fs_truncate+0xd8/0x200 f2fs_iget+0x20c/0x5ac do_garbage_collect+0x5d0/0xf6c f2fs_gc+0x22c/0x6a4 f2fs_disable_checkpoint+0xc8/0x310 f2fs_fill_super+0x14bc/0x1764 mount_bdev+0x1b4/0x21c f2fs_mount+0x20/0x30 legacy_get_tree+0x50/0xbc vfs_get_tree+0x5c/0x1b0 do_new_mount+0x298/0x4cc path_mount+0x33c/0x5fc __arm64_sys_mount+0xcc/0x15c invoke_syscall+0x60/0x150 el0_svc_common+0xb8/0xf8 do_el0_svc+0x28/0xa0 el0_svc+0x24/0x84 el0t_64_sync_handler+0x88/0xec It is because inode.i_crypt_info is not initialized during below path: - mount - f2fs_fill_super - f2fs_disable_checkpoint - f2fs_gc - f2fs_iget - f2fs_truncate So, let's relocate truncation of preallocated blocks to f2fs_file_open(), after fscrypt_file_open().
References
Impacted products
Vendor Product Version
Linux Linux Version: d4dd19ec1ea0cf6532d65709325c42b1398614a8
Version: d4dd19ec1ea0cf6532d65709325c42b1398614a8
Version: d4dd19ec1ea0cf6532d65709325c42b1398614a8
Version: d4dd19ec1ea0cf6532d65709325c42b1398614a8
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to truncate preallocated blocks in f2fs_file_open()\n\nchenyuwen reports a f2fs bug as below:\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000011\n fscrypt_set_bio_crypt_ctx+0x78/0x1e8\n f2fs_grab_read_bio+0x78/0x208\n f2fs_submit_page_read+0x44/0x154\n f2fs_get_read_data_page+0x288/0x5f4\n f2fs_get_lock_data_page+0x60/0x190\n truncate_partial_data_page+0x108/0x4fc\n f2fs_do_truncate_blocks+0x344/0x5f0\n f2fs_truncate_blocks+0x6c/0x134\n f2fs_truncate+0xd8/0x200\n f2fs_iget+0x20c/0x5ac\n do_garbage_collect+0x5d0/0xf6c\n f2fs_gc+0x22c/0x6a4\n f2fs_disable_checkpoint+0xc8/0x310\n f2fs_fill_super+0x14bc/0x1764\n mount_bdev+0x1b4/0x21c\n f2fs_mount+0x20/0x30\n legacy_get_tree+0x50/0xbc\n vfs_get_tree+0x5c/0x1b0\n do_new_mount+0x298/0x4cc\n path_mount+0x33c/0x5fc\n __arm64_sys_mount+0xcc/0x15c\n invoke_syscall+0x60/0x150\n el0_svc_common+0xb8/0xf8\n do_el0_svc+0x28/0xa0\n el0_svc+0x24/0x84\n el0t_64_sync_handler+0x88/0xec\n\nIt is because inode.i_crypt_info is not initialized during below path:\n- mount\n - f2fs_fill_super\n  - f2fs_disable_checkpoint\n   - f2fs_gc\n    - f2fs_iget\n     - f2fs_truncate\n\nSo, let\u0027s relocate truncation of preallocated blocks to f2fs_file_open(),\nafter fscrypt_file_open()."
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-43859\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-17T10:15:10.817\",\"lastModified\":\"2024-09-08T08:15:12.960\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to truncate preallocated blocks in f2fs_file_open()\\n\\nchenyuwen reports a f2fs bug as below:\\n\\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000011\\n fscrypt_set_bio_crypt_ctx+0x78/0x1e8\\n f2fs_grab_read_bio+0x78/0x208\\n f2fs_submit_page_read+0x44/0x154\\n f2fs_get_read_data_page+0x288/0x5f4\\n f2fs_get_lock_data_page+0x60/0x190\\n truncate_partial_data_page+0x108/0x4fc\\n f2fs_do_truncate_blocks+0x344/0x5f0\\n f2fs_truncate_blocks+0x6c/0x134\\n f2fs_truncate+0xd8/0x200\\n f2fs_iget+0x20c/0x5ac\\n do_garbage_collect+0x5d0/0xf6c\\n f2fs_gc+0x22c/0x6a4\\n f2fs_disable_checkpoint+0xc8/0x310\\n f2fs_fill_super+0x14bc/0x1764\\n mount_bdev+0x1b4/0x21c\\n f2fs_mount+0x20/0x30\\n legacy_get_tree+0x50/0xbc\\n vfs_get_tree+0x5c/0x1b0\\n do_new_mount+0x298/0x4cc\\n path_mount+0x33c/0x5fc\\n __arm64_sys_mount+0xcc/0x15c\\n invoke_syscall+0x60/0x150\\n el0_svc_common+0xb8/0xf8\\n do_el0_svc+0x28/0xa0\\n el0_svc+0x24/0x84\\n el0t_64_sync_handler+0x88/0xec\\n\\nIt is because inode.i_crypt_info is not initialized during below path:\\n- mount\\n - f2fs_fill_super\\n  - f2fs_disable_checkpoint\\n   - f2fs_gc\\n    - f2fs_iget\\n     - f2fs_truncate\\n\\nSo, let\u0027s relocate truncation of preallocated blocks to f2fs_file_open(),\\nafter fscrypt_file_open().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: F2FS: Correcto para truncar los bloques preallocados en F2FS_FILE_OPEN () Chenyuwen informa un error F2FS a continuaci\u00f3n: Ineable para manejar el kernel nulo dreference en la direcci\u00f3n virtual 000000000011 FSCRYPT_SET_BIO_CRYPT_ POTER_ GACT/0X1 ab_read_bio+0x78 /0x208 f2fs_submit_page_read+0x44/0x154 f2fs_get_read_data_page+0x288/0x5f4 f2fs_get_lock_data_page+0x60/0x190 truncate_partial_data_page+0x108/0x4fc f2fs_do_truncate_blocks+0x344/0x5f0 f2fs_truncate_blocks+0x6c/0x134 f2fs_truncate+0xd8/0x200 f2fs_iget+0x20c/0x5ac do_garbage_collect+0x5d0/0xf6c f2fs_gc+0x22c /0x6a4 f2fs_disable_checkpoint+0xc8/0x310 f2fs_fill_super+0x14bc/0x1764 mount_bdev+0x1b4/0x21c f2fs_mount+0x20/0x30 Legacy_get_tree+0x50/0xbc vfs_get_tree+0x5c/0x1b0 8/0x4cc path_mount+0x33c/0x5fc __arm64_sys_mount+0xcc/0x15c invoke_syscall+0x60 /0x150 el0_svc_common+0xb8/0xf8 do_el0_svc+0x28/0xa0 el0_svc+0x24/0x84 el0t_64_sync_handler+0x88/0xec Es porque inode.i_crypt_info no se inicializa durante la siguiente ruta: - mount - f2fs_fill_super - f2fs_disable_checkpoint - fs_gc - f2fs_iget - f2fs_truncate Entonces, reubique el truncamiento de bloques preasignados a f2fs_file_open(), despu\u00e9s de fscrypt_file_open().\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.6.44\",\"matchCriteriaId\":\"88C7B344-4818-4A1A-A34B-E3134FED942C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.3\",\"matchCriteriaId\":\"92D388F2-1EAF-4CFA-AC06-5B26D762EA7D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/298b1e4182d657c3e388adcc29477904e9600ed5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3ba0ae885215b325605ff7ebf6de12ac2adf204d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5f04969136db674f133781626e0b692c5f2bf2f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f44a25a8bfe0c15d33244539696cd9119cf44d18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
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}


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