kmalloc-96 1507KB 1692KB kmem_cache_node 212KB 220KB kmem_cache 176KB 218KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 2 UID: 0 PID: 1 Comm: init Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 vpanic+0x552/0x970 kernel/panic.c:650 panic+0xd1/0xe0 kernel/panic.c:787 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1166 __alloc_pages_may_oom mm/page_alloc.c:4116 [inline] __alloc_pages_slowpath mm/page_alloc.c:4914 [inline] __alloc_frozen_pages_noprof+0x232d/0x2bc0 mm/page_alloc.c:5239 alloc_pages_mpol+0x1fb/0x540 mm/mempolicy.c:2490 folio_alloc_mpol_noprof+0x36/0x260 mm/mempolicy.c:2509 swap_cache_alloc_folio+0x1a8/0x300 mm/swap_state.c:548 swap_cluster_readahead+0x411/0x770 mm/swap_state.c:726 swapin_readahead+0x160/0x12c0 mm/swap_state.c:901 do_swap_page+0x931/0x6180 mm/memory.c:4875 handle_pte_fault mm/memory.c:6414 [inline] __handle_mm_fault+0x192f/0x2a00 mm/memory.c:6549 handle_mm_fault+0x36d/0xa20 mm/memory.c:6718 do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1385 handle_page_fault arch/x86/mm/fault.c:1474 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:rseq_set_ids_get_csaddr include/linux/rseq_entry.h:488 [inline] RIP: 0010:rseq_update_usr include/linux/rseq_entry.h:536 [inline] RIP: 0010:rseq_slowpath_update_usr kernel/rseq.c:303 [inline] RIP: 0010:__rseq_handle_slowpath+0x248/0x5c0 kernel/rseq.c:329 Code: 0f 85 80 03 00 00 44 0f b6 bb 14 16 00 00 bf 01 00 00 00 44 89 fe e8 f7 58 c6 ff 41 80 ff 01 0f 86 33 01 00 00 e8 98 5e c6 ff <45> 8b 7d 00 e8 8f 5e c6 ff 48 8d bb 18 16 00 00 48 b8 00 00 00 00 RSP: 0000:ffffc90000137e60 EFLAGS: 00050293 RAX: 0000000000000000 RBX: ffff88801daf0000 RCX: ffffffff8241ac39 RDX: ffff88801daf0000 RSI: ffffffff8241ac48 RDI: ffff88801daf0000 RBP: ffffc90000137eb0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000000 R12: ffffc90000137f48 R13: 00007f6631e3dac0 R14: 0000000000000002 R15: 0000000000000002 rseq_handle_slowpath include/linux/rseq.h:22 [inline] resume_user_mode_work include/linux/resume_user_mode.h:62 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xd8/0x4f0 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x6f2/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6631f8d407 Code: Unable to access opcode bytes at 0x7f6631f8d3dd. RSP: 002b:00007ffcb24c20d0 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 RAX: 0000000000000000 RBX: 00007f6631e3dc80 RCX: 00007f6631f8d407 RDX: 00007ffcb24c2110 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffcb24c2110 R11: 0000000000000202 R12: 00007f66321a7490 R13: 00007ffcb24c214c R14: 00007f66321e7000 R15: 0000559389110d98 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 0f 85 80 03 00 00 jne 0x386 6: 44 0f b6 bb 14 16 00 movzbl 0x1614(%rbx),%r15d d: 00 e: bf 01 00 00 00 mov $0x1,%edi 13: 44 89 fe mov %r15d,%esi 16: e8 f7 58 c6 ff call 0xffc65912 1b: 41 80 ff 01 cmp $0x1,%r15b 1f: 0f 86 33 01 00 00 jbe 0x158 25: e8 98 5e c6 ff call 0xffc65ec2 * 2a: 45 8b 7d 00 mov 0x0(%r13),%r15d <-- trapping instruction 2e: e8 8f 5e c6 ff call 0xffc65ec2 33: 48 8d bb 18 16 00 00 lea 0x1618(%rbx),%rdi 3a: 48 rex.W 3b: b8 00 00 00 00 mov $0x0,%eax