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[syzbot] [crypto?] KMSAN: uninit-value in chksum_update | 0 (1) | 2024/01/09 18:20 |
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[syzbot] [crypto?] KMSAN: uninit-value in chksum_update | 0 (1) | 2024/01/09 18:20 |
EXT4-fs error (device loop4): __ext4_ext_dirty:202: inode #2: comm syz-executor.4: mark_inode_dirty error ===================================================== BUG: KMSAN: uninit-value in chksum_update+0xae/0xd0 crypto/crc32c_generic.c:88 chksum_update+0xae/0xd0 crypto/crc32c_generic.c:88 crypto_shash_update+0x75/0xa0 crypto/shash.c:74 ext4_chksum fs/ext4/ext4.h:2474 [inline] ext4_dirblock_csum fs/ext4/namei.c:382 [inline] ext4_dirblock_csum_set fs/ext4/namei.c:430 [inline] ext4_handle_dirty_dirblock+0x6d5/0x8d0 fs/ext4/namei.c:438 add_dirent_to_buf+0x885/0x9f0 fs/ext4/namei.c:2215 ext4_add_entry+0xcc2/0x1b30 fs/ext4/namei.c:2447 ext4_mkdir+0xaae/0x1510 fs/ext4/namei.c:3031 vfs_mkdir+0x49a/0x700 fs/namei.c:4106 do_mkdirat+0x529/0x800 fs/namei.c:4129 __do_sys_mkdir fs/namei.c:4149 [inline] __se_sys_mkdir fs/namei.c:4147 [inline] __x64_sys_mkdir+0xa1/0xe0 fs/namei.c:4147 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was stored to memory at: ext4_chksum fs/ext4/ext4.h:2472 [inline] ext4_dirblock_csum fs/ext4/namei.c:382 [inline] ext4_dirblock_csum_set fs/ext4/namei.c:430 [inline] ext4_handle_dirty_dirblock+0x7d5/0x8d0 fs/ext4/namei.c:438 add_dirent_to_buf+0x885/0x9f0 fs/ext4/namei.c:2215 ext4_add_entry+0xcc2/0x1b30 fs/ext4/namei.c:2447 ext4_mkdir+0xaae/0x1510 fs/ext4/namei.c:3031 vfs_mkdir+0x49a/0x700 fs/namei.c:4106 do_mkdirat+0x529/0x800 fs/namei.c:4129 __do_sys_mkdir fs/namei.c:4149 [inline] __se_sys_mkdir fs/namei.c:4147 [inline] __x64_sys_mkdir+0xa1/0xe0 fs/namei.c:4147 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4591 alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133 alloc_pages+0x1be/0x1e0 mm/mempolicy.c:2204 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab mm/slub.c:2017 [inline] new_slab+0x421/0x1570 mm/slub.c:2070 ___slab_alloc+0x13db/0x33d0 mm/slub.c:3223 __slab_alloc mm/slub.c:3322 [inline] __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc_lru+0x552/0x970 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2937 [inline] ext4_alloc_inode+0x63/0x850 fs/ext4/super.c:1408 alloc_inode+0x83/0x440 fs/inode.c:261 new_inode_pseudo fs/inode.c:1006 [inline] new_inode+0x38/0x420 fs/inode.c:1032 __ext4_new_inode+0x297/0x79b0 fs/ext4/ialloc.c:958 ext4_symlink+0x57e/0x1440 fs/ext4/namei.c:3398 vfs_symlink+0x1e6/0x3e0 fs/namei.c:4464 do_symlinkat+0x257/0x890 fs/namei.c:4490 __do_sys_symlinkat fs/namei.c:4506 [inline] __se_sys_symlinkat fs/namei.c:4503 [inline] __x64_sys_symlinkat+0xf8/0x160 fs/namei.c:4503 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 0 PID: 5681 Comm: syz-executor.4 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/12/31 18:10 | upstream | 453f5db0619e | fb427a07 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-root | KMSAN: uninit-value in chksum_update |