cve-2024-35849
Vulnerability from cvelistv5
Published
2024-05-17 14:47
Modified
2024-12-19 08:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix information leak in btrfs_ioctl_logical_to_ino() Syzbot reported the following information leak for in btrfs_ioctl_logical_to_ino(): BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x110 lib/usercopy.c:40 instrument_copy_to_user include/linux/instrumented.h:114 [inline] _copy_to_user+0xbc/0x110 lib/usercopy.c:40 copy_to_user include/linux/uaccess.h:191 [inline] btrfs_ioctl_logical_to_ino+0x440/0x750 fs/btrfs/ioctl.c:3499 btrfs_ioctl+0x714/0x1260 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890 x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: __kmalloc_large_node+0x231/0x370 mm/slub.c:3921 __do_kmalloc_node mm/slub.c:3954 [inline] __kmalloc_node+0xb07/0x1060 mm/slub.c:3973 kmalloc_node include/linux/slab.h:648 [inline] kvmalloc_node+0xc0/0x2d0 mm/util.c:634 kvmalloc include/linux/slab.h:766 [inline] init_data_container+0x49/0x1e0 fs/btrfs/backref.c:2779 btrfs_ioctl_logical_to_ino+0x17c/0x750 fs/btrfs/ioctl.c:3480 btrfs_ioctl+0x714/0x1260 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890 x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Bytes 40-65535 of 65536 are uninitialized Memory access of size 65536 starts at ffff888045a40000 This happens, because we're copying a 'struct btrfs_data_container' back to user-space. This btrfs_data_container is allocated in 'init_data_container()' via kvmalloc(), which does not zero-fill the memory. Fix this by using kvzalloc() which zeroes out the memory on allocation.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f7ef5bb4a2f3e481ef05fab946edb97c84f67cfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/30189e54ba80e3209d34cfeea87b848f6ae025e6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a63cee1a5e14a3e52c19142c61dd5fcb524f6dcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/689efe22e9b5b7d9d523119a9a5c3c17107a0772Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73db209dcd4ae026021234d40cfcb2fb5b564b86Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bdbcfaf3eac42f98e5486b3d7e130fa287811f6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e58047553a4e859dafc8d1d901e1de77c9dd922dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fddc19631c51d9c17d43e9f822a7bc403af88d54Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2f7ef5bb4a2f3e481ef05fab946edb97c84f67cfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/30189e54ba80e3209d34cfeea87b848f6ae025e6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3a63cee1a5e14a3e52c19142c61dd5fcb524f6dcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/689efe22e9b5b7d9d523119a9a5c3c17107a0772Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73db209dcd4ae026021234d40cfcb2fb5b564b86Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8bdbcfaf3eac42f98e5486b3d7e130fa287811f6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e58047553a4e859dafc8d1d901e1de77c9dd922dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fddc19631c51d9c17d43e9f822a7bc403af88d54Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlMailing List
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix information leak in btrfs_ioctl_logical_to_ino()\n\nSyzbot reported the following information leak for in\nbtrfs_ioctl_logical_to_ino():\n\n  BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n  BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x110 lib/usercopy.c:40\n   instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n   _copy_to_user+0xbc/0x110 lib/usercopy.c:40\n   copy_to_user include/linux/uaccess.h:191 [inline]\n   btrfs_ioctl_logical_to_ino+0x440/0x750 fs/btrfs/ioctl.c:3499\n   btrfs_ioctl+0x714/0x1260\n   vfs_ioctl fs/ioctl.c:51 [inline]\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n  Uninit was created at:\n   __kmalloc_large_node+0x231/0x370 mm/slub.c:3921\n   __do_kmalloc_node mm/slub.c:3954 [inline]\n   __kmalloc_node+0xb07/0x1060 mm/slub.c:3973\n   kmalloc_node include/linux/slab.h:648 [inline]\n   kvmalloc_node+0xc0/0x2d0 mm/util.c:634\n   kvmalloc include/linux/slab.h:766 [inline]\n   init_data_container+0x49/0x1e0 fs/btrfs/backref.c:2779\n   btrfs_ioctl_logical_to_ino+0x17c/0x750 fs/btrfs/ioctl.c:3480\n   btrfs_ioctl+0x714/0x1260\n   vfs_ioctl fs/ioctl.c:51 [inline]\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n  Bytes 40-65535 of 65536 are uninitialized\n  Memory access of size 65536 starts at ffff888045a40000\n\nThis happens, because we\u0027re copying a \u0027struct btrfs_data_container\u0027 back\nto user-space. This btrfs_data_container is allocated in\n\u0027init_data_container()\u0027 via kvmalloc(), which does not zero-fill the\nmemory.\n\nFix this by using kvzalloc() which zeroes out the memory on allocation."
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    "cveId": "CVE-2024-35849",
    "datePublished": "2024-05-17T14:47:27.486Z",
    "dateReserved": "2024-05-17T13:50:33.105Z",
    "dateUpdated": "2024-12-19T08:56:31.487Z",
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-35849\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-17T15:15:21.777\",\"lastModified\":\"2025-02-03T16:23:16.717\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix information leak in btrfs_ioctl_logical_to_ino()\\n\\nSyzbot reported the following information leak for in\\nbtrfs_ioctl_logical_to_ino():\\n\\n  BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\\n  BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x110 lib/usercopy.c:40\\n   instrument_copy_to_user include/linux/instrumented.h:114 [inline]\\n   _copy_to_user+0xbc/0x110 lib/usercopy.c:40\\n   copy_to_user include/linux/uaccess.h:191 [inline]\\n   btrfs_ioctl_logical_to_ino+0x440/0x750 fs/btrfs/ioctl.c:3499\\n   btrfs_ioctl+0x714/0x1260\\n   vfs_ioctl fs/ioctl.c:51 [inline]\\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\n  Uninit was created at:\\n   __kmalloc_large_node+0x231/0x370 mm/slub.c:3921\\n   __do_kmalloc_node mm/slub.c:3954 [inline]\\n   __kmalloc_node+0xb07/0x1060 mm/slub.c:3973\\n   kmalloc_node include/linux/slab.h:648 [inline]\\n   kvmalloc_node+0xc0/0x2d0 mm/util.c:634\\n   kvmalloc include/linux/slab.h:766 [inline]\\n   init_data_container+0x49/0x1e0 fs/btrfs/backref.c:2779\\n   btrfs_ioctl_logical_to_ino+0x17c/0x750 fs/btrfs/ioctl.c:3480\\n   btrfs_ioctl+0x714/0x1260\\n   vfs_ioctl fs/ioctl.c:51 [inline]\\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\n  Bytes 40-65535 of 65536 are uninitialized\\n  Memory access of size 65536 starts at ffff888045a40000\\n\\nThis happens, because we\u0027re copying a \u0027struct btrfs_data_container\u0027 back\\nto user-space. This btrfs_data_container is allocated in\\n\u0027init_data_container()\u0027 via kvmalloc(), which does not zero-fill the\\nmemory.\\n\\nFix this by using kvzalloc() which zeroes out the memory on allocation.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: btrfs: corrige la fuga de informaci\u00f3n en btrfs_ioctl_logic_to_ino() Syzbot inform\u00f3 la siguiente fuga de informaci\u00f3n en btrfs_ioctl_logic_to_ino(): ERROR: KMSAN: kernel-infoleak en instrument_copy_to_user include/linux/instrumented.h: 114 [en l\u00ednea] ERROR: KMSAN: kernel-infoleak en _copy_to_user+0xbc/0x110 lib/usercopy.c:40 instrument_copy_to_user include/linux/instrumented.h:114 [en l\u00ednea] _copy_to_user+0xbc/0x110 lib/usercopy.c:40 copy_to_user include/linux/uaccess.h:191 [en l\u00ednea] btrfs_ioctl_logic_to_ino+0x440/0x750 fs/btrfs/ioctl.c:3499 btrfs_ioctl+0x714/0x1260 vfs_ioctl fs/ioctl.c:51 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c :904 [en l\u00ednea] __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890 x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h: 17 do_syscall_x64 arco/ x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit se cre\u00f3 en: __kmalloc_large_node+0x231/0x370 mm/slub.c:3921 __do_kmalloc_node mm/slub.c:3954 [en l\u00ednea] __kmalloc_node+0xb07/0x1060 mm/slub.c:3973 kmalloc_node include/linux/slab.h:648 [en l\u00ednea] kvmalloc_node+0xc0/0x2d0 mm/util.c:634 kvmalloc incluye /linux/slab.h:766 [en l\u00ednea] init_data_container+0x49/0x1e0 fs/btrfs/backref.c:2779 btrfs_ioctl_logic_to_ino+0x17c/0x750 fs/btrfs/ioctl.c:3480 btrfs_ioctl+0x714/0x1260 ctl fs/ioctl.c :51 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c:904 [en l\u00ednea] __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890 x64_sys_call+0x1883/0x Arco 3b50/x86/incluye /generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f Bytes 40-65535 de 65536 no est\u00e1n inicializados El acceso a la memoria de tama\u00f1o 65536 comienza en ffff888045a40000. Esto sucede porque estamos copiando una \u0027estructura btrfs_data_container\u0027 nuevamente al espacio de usuario. Este btrfs_data_container se asigna en \u0027init_data_container()\u0027 a trav\u00e9s de kvmalloc(), que no llena la memoria con ceros. Solucione este problema usando kvzalloc() que pone a cero la memoria al asignarla.\"}],\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.19.313\",\"matchCriteriaId\":\"5E74F37F-A8ED-4196-BA92-1F91BD89C1F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.275\",\"matchCriteriaId\":\"5FF6D8DE-C559-4586-86C8-2C6B4420A2C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.216\",\"matchCriteriaId\":\"A44ABF89-F1BD-4C9A-895D-7596650DCD27\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.158\",\"matchCriteriaId\":\"65D80EF6-76AF-4186-B680-55516EA42EED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.90\",\"matchCriteriaId\":\"59CEDDCF-5C0D-4939-9CFE-2F4524892DD3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.30\",\"matchCriteriaId\":\"84046DAF-73CF-429D-9BA4-05B658B377B5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.9\",\"matchCriteriaId\":\"5F9041E5-8358-4EF7-8F98-B812EDE49612\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"52048DDA-FC5A-4363-95A0-A6357B4D7F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"F850DCEC-E08B-4317-A33B-D2DCF39F601B\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2f7ef5bb4a2f3e481ef05fab946edb97c84f67cf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/30189e54ba80e3209d34cfeea87b848f6ae025e6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3a63cee1a5e14a3e52c19142c61dd5fcb524f6dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/689efe22e9b5b7d9d523119a9a5c3c17107a0772\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/73db209dcd4ae026021234d40cfcb2fb5b564b86\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8bdbcfaf3eac42f98e5486b3d7e130fa287811f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e58047553a4e859dafc8d1d901e1de77c9dd922d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fddc19631c51d9c17d43e9f822a7bc403af88d54\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2f7ef5bb4a2f3e481ef05fab946edb97c84f67cf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/30189e54ba80e3209d34cfeea87b848f6ae025e6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3a63cee1a5e14a3e52c19142c61dd5fcb524f6dc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68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    "vulnrichment": {
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{\"title\": \"btrfs: fix information leak in btrfs_ioctl_logical_to_ino()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"689efe22e9b5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"73db209dcd4a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"30189e54ba80\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"e58047553a4e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"8bdbcfaf3eac\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"3a63cee1a5e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"fddc19631c51\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"2f7ef5bb4a2f\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/btrfs/backref.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.19.313\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.275\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.216\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.158\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.90\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.30\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.9\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/backref.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/689efe22e9b5b7d9d523119a9a5c3c17107a0772\"}, {\"url\": \"https://git.kernel.org/stable/c/73db209dcd4ae026021234d40cfcb2fb5b564b86\"}, {\"url\": \"https://git.kernel.org/stable/c/30189e54ba80e3209d34cfeea87b848f6ae025e6\"}, {\"url\": \"https://git.kernel.org/stable/c/e58047553a4e859dafc8d1d901e1de77c9dd922d\"}, {\"url\": \"https://git.kernel.org/stable/c/8bdbcfaf3eac42f98e5486b3d7e130fa287811f6\"}, {\"url\": \"https://git.kernel.org/stable/c/3a63cee1a5e14a3e52c19142c61dd5fcb524f6dc\"}, {\"url\": \"https://git.kernel.org/stable/c/fddc19631c51d9c17d43e9f822a7bc403af88d54\"}, {\"url\": \"https://git.kernel.org/stable/c/2f7ef5bb4a2f3e481ef05fab946edb97c84f67cf\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\"}], \"x_generator\": {\"engine\": \"bippy-a5840b7849dd\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix information leak in btrfs_ioctl_logical_to_ino()\\n\\nSyzbot reported the following information leak for in\\nbtrfs_ioctl_logical_to_ino():\\n\\n  BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\\n  BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x110 lib/usercopy.c:40\\n   instrument_copy_to_user include/linux/instrumented.h:114 [inline]\\n   _copy_to_user+0xbc/0x110 lib/usercopy.c:40\\n   copy_to_user include/linux/uaccess.h:191 [inline]\\n   btrfs_ioctl_logical_to_ino+0x440/0x750 fs/btrfs/ioctl.c:3499\\n   btrfs_ioctl+0x714/0x1260\\n   vfs_ioctl fs/ioctl.c:51 [inline]\\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\n  Uninit was created at:\\n   __kmalloc_large_node+0x231/0x370 mm/slub.c:3921\\n   __do_kmalloc_node mm/slub.c:3954 [inline]\\n   __kmalloc_node+0xb07/0x1060 mm/slub.c:3973\\n   kmalloc_node include/linux/slab.h:648 [inline]\\n   kvmalloc_node+0xc0/0x2d0 mm/util.c:634\\n   kvmalloc include/linux/slab.h:766 [inline]\\n   init_data_container+0x49/0x1e0 fs/btrfs/backref.c:2779\\n   btrfs_ioctl_logical_to_ino+0x17c/0x750 fs/btrfs/ioctl.c:3480\\n   btrfs_ioctl+0x714/0x1260\\n   vfs_ioctl fs/ioctl.c:51 [inline]\\n   __do_sys_ioctl fs/ioctl.c:904 [inline]\\n   __se_sys_ioctl+0x261/0x450 fs/ioctl.c:890\\n   __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:890\\n   x64_sys_call+0x1883/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:17\\n   do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n   do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\\n   entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\n  Bytes 40-65535 of 65536 are uninitialized\\n  Memory access of size 65536 starts at ffff888045a40000\\n\\nThis happens, because we\u0027re copying a \u0027struct btrfs_data_container\u0027 back\\nto user-space. This btrfs_data_container is allocated in\\n\u0027init_data_container()\u0027 via kvmalloc(), which does not zero-fill the\\nmemory.\\n\\nFix this by using kvzalloc() which zeroes out the memory on allocation.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-05-29T05:30:04.494Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-35849\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T03:21:48.438Z\", \"dateReserved\": \"2024-05-17T13:50:33.105Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-17T14:47:27.486Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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