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09beadf289
As Wenqing Liu <wenqingliu0120@gmail.com> reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216285 RIP: 0010:memcpy_erms+0x6/0x10 f2fs_update_meta_page+0x84/0x570 [f2fs] change_curseg.constprop.0+0x159/0xbd0 [f2fs] f2fs_do_replace_block+0x5c7/0x18a0 [f2fs] f2fs_replace_block+0xeb/0x180 [f2fs] recover_data+0x1abd/0x6f50 [f2fs] f2fs_recover_fsync_data+0x12ce/0x3250 [f2fs] f2fs_fill_super+0x4459/0x6190 [f2fs] mount_bdev+0x2cf/0x3b0 legacy_get_tree+0xed/0x1d0 vfs_get_tree+0x81/0x2b0 path_mount+0x47e/0x19d0 do_mount+0xce/0xf0 __x64_sys_mount+0x12c/0x1a0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is segment type is invalid, so in f2fs_do_replace_block(), f2fs accesses f2fs_sm_info::curseg_array with out-of-range segment type, result in accessing invalid curseg->sum_blk during memcpy in f2fs_update_meta_page(). Fix this by adding sanity check on segment type in build_sit_entries(). Reported-by: Wenqing Liu <wenqingliu0120@gmail.com> Signed-off-by: Chao Yu <chao.yu@oppo.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
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| .. | ||
| acl.c | ||
| acl.h | ||
| checkpoint.c | ||
| compress.c | ||
| data.c | ||
| debug.c | ||
| dir.c | ||
| extent_cache.c | ||
| f2fs.h | ||
| file.c | ||
| gc.c | ||
| gc.h | ||
| hash.c | ||
| inline.c | ||
| inode.c | ||
| iostat.c | ||
| iostat.h | ||
| Kconfig | ||
| Makefile | ||
| namei.c | ||
| node.c | ||
| node.h | ||
| recovery.c | ||
| segment.c | ||
| segment.h | ||
| shrinker.c | ||
| super.c | ||
| sysfs.c | ||
| verity.c | ||
| xattr.c | ||
| xattr.h | ||