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[syzbot] [mm?] KASAN: slab-use-after-free Read in move_to_new_folio (3) | 0 (1) | 2024/10/31 00:21 |
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[syzbot] [mm?] KASAN: slab-use-after-free Read in move_to_new_folio (3) | 0 (1) | 2024/10/31 00:21 |
================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: slab-use-after-free in mapping_inaccessible include/linux/pagemap.h:335 [inline] BUG: KASAN: slab-use-after-free in move_to_new_folio+0x231/0x1330 mm/migrate.c:1049 Read of size 8 at addr ffff88802456d9b0 by task kcompactd0/33 CPU: 1 UID: 0 PID: 33 Comm: kcompactd0 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] mapping_inaccessible include/linux/pagemap.h:335 [inline] move_to_new_folio+0x231/0x1330 mm/migrate.c:1049 migrate_folio_move mm/migrate.c:1367 [inline] migrate_pages_batch+0x266b/0x36d0 mm/migrate.c:1898 migrate_pages_sync mm/migrate.c:1964 [inline] migrate_pages+0x2062/0x3560 mm/migrate.c:2073 compact_zone+0x3404/0x4af0 mm/compaction.c:2641 compact_node+0x2de/0x460 mm/compaction.c:2910 kcompactd+0x788/0x1530 mm/compaction.c:3208 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Allocated by task 27: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_lru_noprof+0x139/0x2b0 mm/slub.c:4153 shmem_alloc_inode+0x28/0x40 mm/shmem.c:4934 alloc_inode+0x65/0x1a0 fs/inode.c:336 new_inode_pseudo fs/inode.c:1175 [inline] new_inode+0x22/0x1d0 fs/inode.c:1194 __shmem_get_inode mm/shmem.c:2854 [inline] shmem_get_inode+0x322/0xe00 mm/shmem.c:2925 shmem_mknod+0x191/0x3d0 mm/shmem.c:3624 vfs_mknod+0x36d/0x3b0 fs/namei.c:4189 handle_create drivers/base/devtmpfs.c:219 [inline] handle drivers/base/devtmpfs.c:384 [inline] devtmpfs_work_loop+0x963/0x1040 drivers/base/devtmpfs.c:399 devtmpfsd+0x4c/0x50 drivers/base/devtmpfs.c:441 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Freed by task 7958: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:2342 [inline] slab_free mm/slub.c:4579 [inline] kmem_cache_free+0x1a2/0x420 mm/slub.c:4681 rcu_do_batch kernel/rcu/tree.c:2567 [inline] rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 common_interrupt+0xb9/0xd0 arch/x86/kernel/irq.c:278 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541 __call_rcu_common kernel/rcu/tree.c:3086 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:3190 destroy_inode fs/inode.c:391 [inline] evict+0x836/0x9a0 fs/inode.c:827 do_unlinkat+0x512/0x830 fs/namei.c:4594 __do_sys_unlink fs/namei.c:4635 [inline] __se_sys_unlink fs/namei.c:4633 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4633 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff88802456d4e8 which belongs to the cache shmem_inode_cache of size 1544 The buggy address is located 1224 bytes inside of freed 1544-byte region [ffff88802456d4e8, ffff88802456daf0) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24568 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801c6e5280 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000130013 00000001f5000000 0000000000000000 head: 00fff00000000040 ffff88801c6e5280 dead000000000122 0000000000000000 head: 0000000000000000 0000000000130013 00000001f5000000 0000000000000000 head: 00fff00000000003 ffffea0000915a01 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 27, tgid 27 (kdevtmpfs), ts 8559605438, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x140 mm/slub.c:2412 allocate_slab+0x5a/0x2f0 mm/slub.c:2578 new_slab mm/slub.c:2631 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818 __slab_alloc+0x58/0xa0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] kmem_cache_alloc_lru_noprof+0x1c5/0x2b0 mm/slub.c:4153 shmem_alloc_inode+0x28/0x40 mm/shmem.c:4934 alloc_inode+0x65/0x1a0 fs/inode.c:336 new_inode_pseudo fs/inode.c:1175 [inline] new_inode+0x22/0x1d0 fs/inode.c:1194 __shmem_get_inode mm/shmem.c:2854 [inline] shmem_get_inode+0x322/0xe00 mm/shmem.c:2925 shmem_mknod+0x191/0x3d0 mm/shmem.c:3624 vfs_mknod+0x36d/0x3b0 fs/namei.c:4189 handle_create drivers/base/devtmpfs.c:219 [inline] handle drivers/base/devtmpfs.c:384 [inline] devtmpfs_work_loop+0x963/0x1040 drivers/base/devtmpfs.c:399 page_owner free stack trace missing Memory state around the buggy address: ffff88802456d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802456d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88802456d980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88802456da00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802456da80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
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2024/11/19 18:03 | upstream | 158f238aa69d | 571351cb | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/16 08:42 | upstream | f868cd251776 | cfe3a04a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/16 08:19 | upstream | f868cd251776 | cfe3a04a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/10/22 07:12 | upstream | c2ee9f594da8 | a93682b3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/10/19 12:41 | upstream | 3d5ad2d4eca3 | cd6fc0a3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/08/24 22:01 | upstream | d2bafcf224f3 | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/08/24 02:53 | upstream | 3d5f968a177d | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/18 13:48 | upstream | adc218676eef | e7bb5d6e | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/18 05:46 | upstream | f66d6acccbc0 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/17 17:24 | upstream | 4a5df3796467 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/17 01:27 | upstream | e8bdb3c8be08 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/17 00:51 | upstream | e8bdb3c8be08 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/12 02:48 | upstream | 2d5404caa8c7 | 75bb1b32 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/02 00:29 | upstream | 6c52d4da1c74 | 9f6834c9 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/01 16:34 | upstream | 6c52d4da1c74 | 9f6834c9 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-use-after-free Read in move_to_new_folio | ||
2024/11/18 06:15 | upstream | f66d6acccbc0 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-out-of-bounds Read in move_to_new_folio | ||
2024/10/31 00:20 | upstream | 4236f913808c | fb888278 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | general protection fault in move_to_new_folio | ||
2024/11/18 06:27 | upstream | f66d6acccbc0 | cfe3a04a | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | KASAN: use-after-free Read in move_to_new_folio |