Title | Replies (including bot) | Last reply |
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[PATCH] jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount | 6 (6) | 2023/07/18 19:46 |
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[PATCH] jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount | 6 (6) | 2023/07/18 19:46 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | KASAN: invalid-free in dbUnmount jfs fat | C | error | 2 | 710d | 735d | 0/1 | upstream: reported C repro on 2022/11/28 18:08 | |
upstream | KASAN: invalid-free in dbUnmount jfs | syz | error | 119 | 435d | 694d | 23/28 | fixed on 2023/10/12 12:48 |
================================================================== BUG: KASAN: double-free in kfree+0xcc/0x1b8 mm/slab_common.c:1007 Free of addr ffff0001236e3000 by task syz-executor.4/4272 CPU: 1 PID: 4272 Comm: syz-executor.4 Not tainted 6.1.27-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 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_invalid_free+0xc4/0x114 mm/kasan/report.c:460 ____kasan_slab_free+0x170/0x1c0 mm/kasan/common.c:225 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:244 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x2c0/0x4b4 mm/slub.c:3674 kfree+0xcc/0x1b8 mm/slab_common.c:1007 dbUnmount+0xf8/0x114 fs/jfs/jfs_dmap.c:265 jfs_umount+0x1cc/0x338 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x328 fs/super.c:501 kill_block_super+0x70/0xdc fs/super.c:1450 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xf0/0x110 fs/super.c:363 cleanup_mnt+0x394/0x41c fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x240/0x2f0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2144/0x3470 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Allocated by task 4605: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace+0x7c/0x94 mm/slab_common.c:1050 kmalloc include/linux/slab.h:553 [inline] dbMount+0x68/0x7e4 fs/jfs/jfs_dmap.c:164 jfs_mount+0x1c8/0x7a4 fs/jfs/jfs_mount.c:121 jfs_fill_super+0x464/0x9f0 fs/jfs/super.c:556 mount_bdev+0x26c/0x368 fs/super.c:1423 jfs_do_mount+0x44/0x58 fs/jfs/super.c:670 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1553 do_new_mount+0x25c/0x8c8 fs/namespace.c:3040 path_mount+0x590/0xe58 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __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:581 Freed by task 4615: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_free_info+0x38/0x5c mm/kasan/generic.c:516 ____kasan_slab_free+0x144/0x1c0 mm/kasan/common.c:236 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:244 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x2c0/0x4b4 mm/slub.c:3674 kfree+0xcc/0x1b8 mm/slab_common.c:1007 dbUnmount+0xf8/0x114 fs/jfs/jfs_dmap.c:265 jfs_mount_rw+0x394/0x57c fs/jfs/jfs_mount.c:243 jfs_remount+0x328/0x594 fs/jfs/super.c:454 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:633 reconfigure_super+0x328/0x738 fs/super.c:957 vfs_fsconfig_locked fs/fsopen.c:254 [inline] __do_sys_fsconfig fs/fsopen.c:439 [inline] __se_sys_fsconfig fs/fsopen.c:314 [inline] __arm64_sys_fsconfig+0xa1c/0xd18 fs/fsopen.c:314 __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:581 The buggy address belongs to the object at ffff0001236e3000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 0 bytes inside of 2048-byte region [ffff0001236e3000, ffff0001236e3800) The buggy address belongs to the physical page: page:00000000c3b1b749 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1636e0 head:00000000c3b1b749 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002900 raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0001236e2f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0001236e2f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0001236e3000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0001236e3080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0001236e3100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/05/09 02:07 | linux-6.1.y | ca48fc16c493 | c7a5e2a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | KASAN: invalid-free in dbUnmount | ||
2023/04/23 13:09 | linux-6.1.y | f17b0ab65d17 | 2b32bd34 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | KASAN: invalid-free in dbUnmount |