Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/01/23 | linux-6.1.y (ToT) | 8fd7f4462453 | C | [report] UBSAN: array-index-out-of-bounds in diNewExt |
2024/01/23 | upstream (ToT) | 7ed2632ec7d7 | C | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/01/23 | linux-6.1.y (ToT) | 8fd7f4462453 | C | [report] UBSAN: array-index-out-of-bounds in diNewExt |
2024/01/23 | upstream (ToT) | 7ed2632ec7d7 | C | Didn't crash |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | UBSAN: array-index-out-of-bounds in diNewExt jfs | C | inconclusive | 31 | 310d | 361d | 25/28 | fixed on 2024/01/30 15:47 |
loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2360:2 index 134217728 is out of range for type 'struct iagctl[128]' CPU: 1 PID: 4221 Comm: syz-executor958 Not tainted 6.1.74-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282 diNewExt+0x280c/0x2b44 fs/jfs/jfs_imap.c:2360 diAllocExt fs/jfs/jfs_imap.c:1949 [inline] diAllocAG+0xa68/0x1b8c fs/jfs/jfs_imap.c:1666 diAlloc+0x17c/0x15c4 fs/jfs/jfs_imap.c:1587 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x334/0x4e4 fs/namei.c:4114 do_mkdirat+0x220/0x510 fs/namei.c:4139 __do_sys_mkdirat fs/namei.c:4154 [inline] __se_sys_mkdirat fs/namei.c:4152 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ================================================================================ ================================================================== BUG: KASAN: use-after-free in diNewExt+0x2af0/0x2b44 fs/jfs/jfs_imap.c:2360 Read of size 4 at addr ffff000157e7802c by task syz-executor958/4221 CPU: 1 PID: 4221 Comm: syz-executor958 Not tainted 6.1.74-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:395 kasan_report+0xd4/0x130 mm/kasan/report.c:495 __asan_report_load4_noabort+0x2c/0x38 mm/kasan/report_generic.c:350 diNewExt+0x2af0/0x2b44 fs/jfs/jfs_imap.c:2360 diAllocExt fs/jfs/jfs_imap.c:1949 [inline] diAllocAG+0xa68/0x1b8c fs/jfs/jfs_imap.c:1666 diAlloc+0x17c/0x15c4 fs/jfs/jfs_imap.c:1587 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x334/0x4e4 fs/namei.c:4114 do_mkdirat+0x220/0x510 fs/namei.c:4139 __do_sys_mkdirat fs/namei.c:4154 [inline] __se_sys_mkdirat fs/namei.c:4152 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the physical page: page:000000009e7d2aa3 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x197e78 flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000000000 fffffc00055f9e08 fffffc00055f9e08 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000157e77f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff000157e77f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff000157e78000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff000157e78080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff000157e78100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2361:2 index 134217728 is out of range for type 'struct iagctl[128]' CPU: 1 PID: 4221 Comm: syz-executor958 Tainted: G B 6.1.74-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282 diNewExt+0x2840/0x2b44 fs/jfs/jfs_imap.c:2361 diAllocExt fs/jfs/jfs_imap.c:1949 [inline] diAllocAG+0xa68/0x1b8c fs/jfs/jfs_imap.c:1666 diAlloc+0x17c/0x15c4 fs/jfs/jfs_imap.c:1587 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x334/0x4e4 fs/namei.c:4114 do_mkdirat+0x220/0x510 fs/namei.c:4139 __do_sys_mkdirat fs/namei.c:4154 [inline] __se_sys_mkdirat fs/namei.c:4152 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ================================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/01/23 10:07 | linux-6.1.y | 8fd7f4462453 | 1c0ecc51 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan-arm64 | UBSAN: array-index-out-of-bounds in diNewExt | |
2024/01/23 09:15 | linux-6.1.y | 8fd7f4462453 | 1c0ecc51 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | UBSAN: array-index-out-of-bounds in diNewExt |