CPU: 1 PID: 3481 Comm: syz-executor.3 Not tainted 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:free_large_kmalloc+0x5a/0x230 mm/slab_common.c:923 Code: 89 5d b0 48 89 df e8 a5 8a 29 00 48 8b 00 41 81 e4 00 00 01 00 a9 00 00 01 00 74 09 f7 d0 44 89 e1 21 c1 74 35 4d 85 e4 75 3c <0f> 0b 8a 1d 3e 09 66 0d 48 c7 c7 c0 db 61 8f e8 22 89 29 00 80 38 ===================================================== BUG: KMSAN: uninit-value in show_iret_regs+0x222/0x230 arch/x86/kernel/dumpstack.c:150 show_iret_regs+0x222/0x230 arch/x86/kernel/dumpstack.c:150 __show_regs+0x31/0xc90 arch/x86/kernel/process_64.c:74 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:618 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:317 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:338 asm_exc_invalid_op+0x1b/0x20 arch/x86/include/asm/idtentry.h:568 folio_order include/linux/mm.h:732 [inline] free_large_kmalloc+0x5a/0x230 mm/slab_common.c:921 kfree+0x1d3/0x420 mm/slab_common.c:1001 kvfree+0x65/0x70 mm/util.c:627 xt_free_table_info+0x135/0x1d0 net/netfilter/x_tables.c:1208 __do_replace+0xcd5/0xf90 net/ipv6/netfilter/ip6_tables.c:1104 compat_do_replace net/ipv6/netfilter/ip6_tables.c:1533 [inline] do_ip6t_set_ctl+0x5465/0x5760 net/ipv6/netfilter/ip6_tables.c:1636 nf_setsockopt+0x48a/0x4f0 net/netfilter/nf_sockopt.c:101 ipv6_setsockopt+0x1d8/0x310 net/ipv6/ipv6_sockglue.c:1030 tcp_setsockopt+0x14a/0x180 net/ipv4/tcp.c:3801 sock_common_setsockopt+0xef/0x120 net/core/sock.c:3641 __sys_setsockopt+0x8df/0xdd0 net/socket.c:2252 __do_compat_sys_socketcall net/compat.c:489 [inline] __se_compat_sys_socketcall+0xb3a/0x1a90 net/compat.c:421 __ia32_compat_sys_socketcall+0x67/0x90 net/compat.c:421 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable rf created at: __schedule+0x44/0x2180 kernel/sched/core.c:6389 preempt_schedule_common+0xe8/0x180 kernel/sched/core.c:6672 CPU: 1 PID: 3481 Comm: syz-executor.3 Not tainted 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 =====================================================