ci2 starts bisection 2023-12-29 02:43:57.138267304 +0000 UTC m=+557640.462152865 bisecting fixing commit since 3a93e40326c8f470e71d20b4c42d36767450f38f building syzkaller on 47f3aaf18b57644f3c07714c9ce073a210f061b4 ensuring issue is reproducible on original commit 3a93e40326c8f470e71d20b4c42d36767450f38f testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa3c7dc071bdf72604f7ba0f4e8361e5909be802461e85c8486699cc59c6a41b run #0: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #10: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #11: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #12: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #13: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #14: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #15: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #16: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #17: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #18: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #19: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa71a88f510752d8f2c76fbfd0e3bed2cc822f1034e55fdf445bd2ae2654ce50 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3915 full=7587 leaves diff=1998 split chunks (needed=false): <1998> split chunk #0 of len 1998 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 626e1c4b72cf06414f83c729f408b964f657429d6a942e7c59c028390c51013a run #0: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6804f6703ade8efbe50866f318c7c26c8490dabc3fec96b2e2b12d29bea0e5d9 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f88dae8c0650a114d2eb6762909702765a90b119e40ad529db8e49446c6ac3d3 run #0: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47cd09c34434a21a5974eafbeb629e807bd02325bc76dd42c229eda27e75e743 run #0: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3a93e40326c8f470e71d20b4c42d36767450f38f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4fe1794faee0f888cde1cd11e9fdc7cb257a54a14a60ba58ec209070ce66beb2 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing current HEAD 8735c7c84d1bc5c3e481c02b6b6163bdefe4132f testing commit 8735c7c84d1bc5c3e481c02b6b6163bdefe4132f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 04a1760a58da709d38d0c2bc1936b8cb6e3bec3cd1023415bb07745df09cdb12 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h8m46.752936597s (build: 42m23.438864046s, test: 23m32.875382415s) crash still not fixed or there were kernel test errors commit msg: Merge tag '6.7rc7-smb3-srv-fix' of git://git.samba.org/ksmbd crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ================================================================== BUG: KASAN: slab-out-of-bounds in ext4_read_inline_data fs/ext4/inline.c:209 [inline] BUG: KASAN: slab-out-of-bounds in ext4_convert_inline_data_nolock+0x293/0xca0 fs/ext4/inline.c:1188 Read of size 20 at addr ffff88811aaed1a3 by task syz-executor.0/1851 CPU: 1 PID: 1851 Comm: syz-executor.0 Not tainted 6.7.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xf8/0x260 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x142/0x170 mm/kasan/report.c:588 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 ext4_read_inline_data fs/ext4/inline.c:209 [inline] ext4_convert_inline_data_nolock+0x293/0xca0 fs/ext4/inline.c:1188 ext4_convert_inline_data+0x3c4/0x4e0 fs/ext4/inline.c:2041 ext4_fallocate+0x141/0x16e0 fs/ext4/extents.c:4701 vfs_fallocate+0x316/0x3d0 fs/open.c:324 ksys_fallocate fs/open.c:347 [inline] __do_sys_fallocate fs/open.c:355 [inline] __se_sys_fallocate fs/open.c:353 [inline] __x64_sys_fallocate+0xaa/0xe0 fs/open.c:353 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0xe0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f0468a0d8d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f04685900c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f0468b2cf80 RCX: 00007f0468a0d8d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f0468a69b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f0468b2cf80 R15: 00007fffb1df7dd8 Allocated by task 1600: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x67/0x3c0 mm/slab.h:763 kmem_cache_alloc_bulk+0x456/0x520 mm/slub.c:4056 mt_alloc_bulk lib/maple_tree.c:165 [inline] mas_alloc_nodes+0x359/0x680 lib/maple_tree.c:1287 mas_node_count_gfp lib/maple_tree.c:1345 [inline] mas_preallocate+0xd91/0x17b0 lib/maple_tree.c:5531 vma_iter_prealloc mm/internal.h:1149 [inline] __split_vma+0x219/0xad0 mm/mmap.c:2378 do_vmi_align_munmap+0x3e0/0x1390 mm/mmap.c:2579 do_vmi_munmap+0x1b1/0x210 mm/mmap.c:2725 mmap_region+0x6eb/0x1ad0 mm/mmap.c:2776 do_mmap+0x6c0/0xb90 mm/mmap.c:1379 vm_mmap_pgoff+0x216/0x3a0 mm/util.c:556 ksys_mmap_pgoff+0x2d9/0x3c0 mm/mmap.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0xe0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Freed by task 1603: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522 ____kasan_slab_free+0x122/0x1e0 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook mm/slub.c:1826 [inline] slab_free mm/slub.c:3809 [inline] kmem_cache_free+0x2f0/0x510 mm/slub.c:3831 rcu_do_batch kernel/rcu/tree.c:2158 [inline] rcu_core+0xc48/0x1460 kernel/rcu/tree.c:2431 __do_softirq+0x1ba/0x571 kernel/softirq.c:553 Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492 __call_rcu_common kernel/rcu/tree.c:2681 [inline] call_rcu+0x159/0x8e0 kernel/rcu/tree.c:2795 ma_free_rcu lib/maple_tree.c:190 [inline] mas_topiary_node lib/maple_tree.c:2556 [inline] mas_topiary_replace lib/maple_tree.c:2656 [inline] mas_wmb_replace+0x11b0/0x2410 lib/maple_tree.c:2678 mas_split lib/maple_tree.c:3429 [inline] mas_commit_b_node+0x1f44/0x3b00 lib/maple_tree.c:3482 mas_wr_bnode lib/maple_tree.c:4198 [inline] mas_wr_modify+0x109a/0x2600 lib/maple_tree.c:4236 mas_store_prealloc+0x1f4/0x690 lib/maple_tree.c:5460 vma_complete+0x275/0x950 mm/mmap.c:532 __split_vma+0x967/0xad0 mm/mmap.c:2411 do_vmi_align_munmap+0x3e0/0x1390 mm/mmap.c:2579 do_vmi_munmap+0x1b1/0x210 mm/mmap.c:2725 mmap_region+0x6eb/0x1ad0 mm/mmap.c:2776 do_mmap+0x6c0/0xb90 mm/mmap.c:1379 vm_mmap_pgoff+0x216/0x3a0 mm/util.c:556 ksys_mmap_pgoff+0x2d9/0x3c0 mm/mmap.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0xe0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Second to last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492 __call_rcu_common kernel/rcu/tree.c:2681 [inline] call_rcu+0x159/0x8e0 kernel/rcu/tree.c:2795 mas_wr_node_store lib/maple_tree.c:3995 [inline] mas_wr_modify+0x1c55/0x2600 lib/maple_tree.c:4229 mas_store_prealloc+0x1f4/0x690 lib/maple_tree.c:5460 vma_complete+0x275/0x950 mm/mmap.c:532 __split_vma+0x967/0xad0 mm/mmap.c:2411 split_vma mm/mmap.c:2437 [inline] vma_modify+0x287/0x330 mm/mmap.c:2479 vma_modify_flags include/linux/mm.h:3271 [inline] mprotect_fixup+0x323/0x920 mm/mprotect.c:635 do_mprotect_pkey+0x7ad/0xa70 mm/mprotect.c:809 __do_sys_mprotect mm/mprotect.c:830 [inline] __se_sys_mprotect mm/mprotect.c:827 [inline] __x64_sys_mprotect+0x7b/0x90 mm/mprotect.c:827 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0xe0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff88811aaed000 which belongs to the cache maple_node of size 256 The buggy address is located 163 bytes to the right of allocated 256-byte region [ffff88811aaed000, ffff88811aaed100) The buggy address belongs to the physical page: page:ffffea00046abb00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11aaec head:ffffea00046abb00 order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x200000000000840(slab|head|node=0|zone=2) page_type: 0xffffffff() raw: 0200000000000840 ffff888100a4d000 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1171, tgid 1171 (modprobe), ts 27044431228, free_ts 26841236992 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x10b/0x130 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x32d5/0x36a0 mm/page_alloc.c:3312 __alloc_pages+0x255/0x650 mm/page_alloc.c:4568 alloc_pages_mpol+0x143/0x320 mm/mempolicy.c:2133 alloc_slab_page+0x6a/0x170 mm/slub.c:1870 allocate_slab mm/slub.c:2017 [inline] new_slab+0x70/0x270 mm/slub.c:2070 ___slab_alloc+0x94b/0xee0 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+0x1dd/0x2f0 mm/slub.c:3502 mt_alloc_one lib/maple_tree.c:160 [inline] mas_alloc_nodes+0x1dd/0x680 lib/maple_tree.c:1265 mas_node_count_gfp lib/maple_tree.c:1345 [inline] mas_preallocate+0xd91/0x17b0 lib/maple_tree.c:5531 vma_iter_prealloc mm/internal.h:1149 [inline] __split_vma+0x219/0xad0 mm/mmap.c:2378 do_vmi_align_munmap+0x3e0/0x1390 mm/mmap.c:2579 do_vmi_munmap+0x1b1/0x210 mm/mmap.c:2725 mmap_region+0x6eb/0x1ad0 mm/mmap.c:2776 do_mmap+0x6c0/0xb90 mm/mmap.c:1379 vm_mmap_pgoff+0x216/0x3a0 mm/util.c:556 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x7e3/0x900 mm/page_alloc.c:2347 free_unref_page+0x34/0x230 mm/page_alloc.c:2487 vfree+0x10e/0x200 mm/vmalloc.c:2842 delayed_vfree_work+0x3c/0x70 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2627 [inline] process_scheduled_works+0x7e6/0xfc0 kernel/workqueue.c:2700 worker_thread+0x868/0xc90 kernel/workqueue.c:2781 kthread+0x233/0x280 kernel/kthread.c:388 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Memory state around the buggy address: ffff88811aaed080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88811aaed100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88811aaed180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88811aaed200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88811aaed280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb 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