cve-2023-52770
Vulnerability from cvelistv5
Published
2024-05-21 15:30
Modified
2024-08-02 23:11
Severity
Summary
f2fs: split initial and dynamic conditions for extent_cache
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9de787139b0258a5dd1f498780c26d76b61d2958
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d83309e7e006cee8afca83523559017c824fbf7a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f803982190f0265fd36cf84670aa6daefc2b0768
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
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                "id": "CVE-2023-52770",
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                "timestamp": "2024-05-21T17:30:42.335957Z",
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: split initial and dynamic conditions for extent_cache\n\nLet\u0027s allocate the extent_cache tree without dynamic conditions to avoid a\nmissing condition causing a panic as below.\n\n # create a file w/ a compressed flag\n # disable the compression\n # panic while updating extent_cache\n\nF2FS-fs (dm-64): Swapfile: last extent is not aligned to section\nF2FS-fs (dm-64): Swapfile (3) is not align to section: 1) creat(), 2) ioctl(F2FS_IOC_SET_PIN_FILE), 3) fallocate(2097152 * N)\nAdding 124996k swap on ./swap-file.  Priority:0 extents:2 across:17179494468k\n==================================================================\nBUG: KASAN: null-ptr-deref in instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]\nBUG: KASAN: null-ptr-deref in atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]\nBUG: KASAN: null-ptr-deref in queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]\nBUG: KASAN: null-ptr-deref in __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]\nBUG: KASAN: null-ptr-deref in _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295\nWrite of size 4 at addr 0000000000000030 by task syz-executor154/3327\n\nCPU: 0 PID: 3327 Comm: syz-executor154 Tainted: G           O      5.10.185 #1\nHardware name: emulation qemu-x86/qemu-x86, BIOS 2023.01-21885-gb3cc1cd24d 01/01/2023\nCall Trace:\n __dump_stack out/common/lib/dump_stack.c:77 [inline]\n dump_stack_lvl+0x17e/0x1c4 out/common/lib/dump_stack.c:118\n __kasan_report+0x16c/0x260 out/common/mm/kasan/report.c:415\n kasan_report+0x51/0x70 out/common/mm/kasan/report.c:428\n kasan_check_range+0x2f3/0x340 out/common/mm/kasan/generic.c:186\n __kasan_check_write+0x14/0x20 out/common/mm/kasan/shadow.c:37\n instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]\n atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]\n queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]\n __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]\n _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295\n __drop_extent_tree+0xdf/0x2f0 out/common/fs/f2fs/extent_cache.c:1155\n f2fs_drop_extent_tree+0x17/0x30 out/common/fs/f2fs/extent_cache.c:1172\n f2fs_insert_range out/common/fs/f2fs/file.c:1600 [inline]\n f2fs_fallocate+0x19fd/0x1f40 out/common/fs/f2fs/file.c:1764\n vfs_fallocate+0x514/0x9b0 out/common/fs/open.c:310\n ksys_fallocate out/common/fs/open.c:333 [inline]\n __do_sys_fallocate out/common/fs/open.c:341 [inline]\n __se_sys_fallocate out/common/fs/open.c:339 [inline]\n __x64_sys_fallocate+0xb8/0x100 out/common/fs/open.c:339\n do_syscall_64+0x35/0x50 out/common/arch/x86/entry/common.c:46"
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      "title": "f2fs: split initial and dynamic conditions for extent_cache",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52770",
    "datePublished": "2024-05-21T15:30:52.970Z",
    "dateReserved": "2024-05-21T15:19:24.239Z",
    "dateUpdated": "2024-08-02T23:11:36.015Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52770\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T16:15:16.220\",\"lastModified\":\"2024-05-21T16:53:56.550\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: split initial and dynamic conditions for extent_cache\\n\\nLet\u0027s allocate the extent_cache tree without dynamic conditions to avoid a\\nmissing condition causing a panic as below.\\n\\n # create a file w/ a compressed flag\\n # disable the compression\\n # panic while updating extent_cache\\n\\nF2FS-fs (dm-64): Swapfile: last extent is not aligned to section\\nF2FS-fs (dm-64): Swapfile (3) is not align to section: 1) creat(), 2) ioctl(F2FS_IOC_SET_PIN_FILE), 3) fallocate(2097152 * N)\\nAdding 124996k swap on ./swap-file.  Priority:0 extents:2 across:17179494468k\\n==================================================================\\nBUG: KASAN: null-ptr-deref in instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]\\nBUG: KASAN: null-ptr-deref in atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]\\nBUG: KASAN: null-ptr-deref in queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]\\nBUG: KASAN: null-ptr-deref in __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]\\nBUG: KASAN: null-ptr-deref in _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295\\nWrite of size 4 at addr 0000000000000030 by task syz-executor154/3327\\n\\nCPU: 0 PID: 3327 Comm: syz-executor154 Tainted: G           O      5.10.185 #1\\nHardware name: emulation qemu-x86/qemu-x86, BIOS 2023.01-21885-gb3cc1cd24d 01/01/2023\\nCall Trace:\\n __dump_stack out/common/lib/dump_stack.c:77 [inline]\\n dump_stack_lvl+0x17e/0x1c4 out/common/lib/dump_stack.c:118\\n __kasan_report+0x16c/0x260 out/common/mm/kasan/report.c:415\\n kasan_report+0x51/0x70 out/common/mm/kasan/report.c:428\\n kasan_check_range+0x2f3/0x340 out/common/mm/kasan/generic.c:186\\n __kasan_check_write+0x14/0x20 out/common/mm/kasan/shadow.c:37\\n instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]\\n atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]\\n queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]\\n __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]\\n _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295\\n __drop_extent_tree+0xdf/0x2f0 out/common/fs/f2fs/extent_cache.c:1155\\n f2fs_drop_extent_tree+0x17/0x30 out/common/fs/f2fs/extent_cache.c:1172\\n f2fs_insert_range out/common/fs/f2fs/file.c:1600 [inline]\\n f2fs_fallocate+0x19fd/0x1f40 out/common/fs/f2fs/file.c:1764\\n vfs_fallocate+0x514/0x9b0 out/common/fs/open.c:310\\n ksys_fallocate out/common/fs/open.c:333 [inline]\\n __do_sys_fallocate out/common/fs/open.c:341 [inline]\\n __se_sys_fallocate out/common/fs/open.c:339 [inline]\\n __x64_sys_fallocate+0xb8/0x100 out/common/fs/open.c:339\\n do_syscall_64+0x35/0x50 out/common/arch/x86/entry/common.c:46\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: f2fs: condiciones iniciales y din\u00e1micas divididas para extend_cache. Asignemos el \u00e1rbol extend_cache sin condiciones din\u00e1micas para evitar que una condici\u00f3n faltante cause p\u00e1nico como se muestra a continuaci\u00f3n. # crear un archivo con una bandera comprimida # desactivar la compresi\u00f3n # entrar en p\u00e1nico al actualizar extend_cache F2FS-fs (dm-64): Swapfile: la \u00faltima extensi\u00f3n no est\u00e1 alineada con la secci\u00f3n F2FS-fs (dm-64): Swapfile (3) es no alinearse con la secci\u00f3n: 1) creat(), 2) ioctl(F2FS_IOC_SET_PIN_FILE), 3) fallocate(2097152 * N) Agregando 124996k swap en ./swap-file. Prioridad:0 extensiones:2 a trav\u00e9s de:17179494468k ========================================== ========================= ERROR: KASAN: null-ptr-deref en instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [ en l\u00ednea] ERROR: KASAN: null-ptr-deref en atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [en l\u00ednea] ERROR: KASAN: null-ptr-deref en queued_write_lock out/common/include/ asm-generic/qrwlock.h:92 [en l\u00ednea] ERROR: KASAN: null-ptr-deref en __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [en l\u00ednea] ERROR: KASAN: null-ptr-deref en _raw_write_lock +0x5a/0x110 out/common/kernel/locking/spinlock.c:295 Escritura de tama\u00f1o 4 en la direcci\u00f3n 0000000000000030 por tarea syz-executor154/3327 CPU: 0 PID: 3327 Comm: syz-executor154 Contaminado: GO 5.10.185 #1 Nombre del hardware: emulaci\u00f3n qemu-x86/qemu-x86, BIOS 2023.01-21885-gb3cc1cd24d 01/01/2023 Seguimiento de llamadas: dump_stack out/common/lib/dump_stack.c:77 [inline] dump_stack_lvl+0x17e/0x1c4 out/common/lib/dump_stack.c:118 __kasan_report+0x16c/0x260 out/common/mm/kasan/report.c:415 kasan_report+0x51/0x70 out/common/mm/kasan/report.c:428 kasan_check_range+0x2f3/0x340 out/common/mm/kasan/generic.c:186 __kasan_check_write+0x14/0x20 out/common/mm/kasan/shadow.c:37 instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline] atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline] queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline] __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline] _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295 __drop_extent_tree+0xdf/0x2f0 out/common/fs/f2fs/extent_cache.c:1155 f2fs_drop_extent_tree+0x17/0x30 out/common/fs/f2fs/extent_cache.c:1172 f2fs_insert_range out/common/fs/f2fs/file.c:1600 [inline] f2fs_fallocate+0x19fd/0x1f40 out/common/fs/f2fs/file.c:1764 vfs_fallocate+0x514/0x9b0 out/common/fs/open.c:310 ksys_fallocate out/common/fs/open.c:333 [inline] __do_sys_fallocate out/common/fs/open.c:341 [inline] __se_sys_fallocate out/common/fs/open.c:339 [inline] __x64_sys_fallocate+0xb8/0x100 out/common/fs/open.c:339 do_syscall_64+0x35/0x50 out/common/arch/x86/entry/common.c:46\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9de787139b0258a5dd1f498780c26d76b61d2958\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d83309e7e006cee8afca83523559017c824fbf7a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f803982190f0265fd36cf84670aa6daefc2b0768\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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