Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] [mm?] KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue (2) | 3 (4) | 2024/06/24 09:38 |
syzbot |
sign-in | mailing list | source | docs |
Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] [mm?] KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue (2) | 3 (4) | 2024/06/24 09:38 |
================================================================== BUG: KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue write to 0xffff888102bf2e08 of 8 bytes by task 11735 on cpu 1: rcu_segcblist_enqueue+0x67/0xb0 kernel/rcu/rcu_segcblist.c:345 rcutree_enqueue kernel/rcu/tree.c:2974 [inline] call_rcu_core kernel/rcu/tree.c:2991 [inline] __call_rcu_common kernel/rcu/tree.c:3127 [inline] call_rcu+0x1bd/0x430 kernel/rcu/tree.c:3210 ma_free_rcu lib/maple_tree.c:197 [inline] mas_free lib/maple_tree.c:1304 [inline] mas_replace_node+0x2f8/0x440 lib/maple_tree.c:1741 mas_wr_node_store lib/maple_tree.c:3956 [inline] mas_wr_modify+0x2bc3/0x3c90 lib/maple_tree.c:4189 mas_wr_store_entry+0x250/0x390 lib/maple_tree.c:4227 mas_store_prealloc+0x151/0x2b0 lib/maple_tree.c:5482 vma_iter_store mm/internal.h:1452 [inline] vma_complete+0x3a7/0x760 mm/mmap.c:576 __split_vma+0x623/0x690 mm/mmap.c:2511 split_vma mm/mmap.c:2537 [inline] vma_modify+0x198/0x1f0 mm/mmap.c:2578 vma_modify_flags include/linux/mm.h:3309 [inline] mprotect_fixup+0x335/0x610 mm/mprotect.c:639 do_mprotect_pkey+0x673/0x9a0 mm/mprotect.c:822 __do_sys_mprotect mm/mprotect.c:843 [inline] __se_sys_mprotect mm/mprotect.c:840 [inline] __x64_sys_mprotect+0x48/0x60 mm/mprotect.c:840 x64_sys_call+0x26cf/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:11 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888102bf2e08 of 8 bytes by task 11741 on cpu 0: mtree_range_walk+0x140/0x460 lib/maple_tree.c:2774 mas_state_walk lib/maple_tree.c:3678 [inline] mas_walk+0x16e/0x320 lib/maple_tree.c:4906 lock_vma_under_rcu+0x84/0x260 mm/memory.c:5994 do_user_addr_fault arch/x86/mm/fault.c:1329 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x150/0x650 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 11741 Comm: syz.2.1785 Not tainted 6.11.0-rc4-syzkaller-00143-g3d5f968a177d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/23 23:14 | upstream | 3d5f968a177d | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue | ||
2024/08/01 12:17 | upstream | 21b136cc63d2 | 1e9c4cf3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue | ||
2024/07/15 07:58 | upstream | 0c3836482481 | c605e6a2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue | ||
2024/06/21 11:49 | upstream | 50736169ecc8 | dac2aa43 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in mtree_range_walk / rcu_segcblist_enqueue |