slab kmalloc-96 start ffff88801e29e180 pointer offset 0 size 96
list_add corruption. next->prev should be prev (ffffe8ffffc38030), but was ffffffff84ae4400. (next=ffff88801e29e180).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:31!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5316 Comm: syz-execprog Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__list_add_valid_or_report+0xf3/0x130 lib/list_debug.c:29
Code: a6 15 fd 42 80 7c 2d 00 00 74 08 48 89 df e8 24 50 37 fd 49 8b 56 08 48 c7 c7 20 82 60 8c 4c 89 e6 4c 89 f1 e8 ce 52 38 fc 90 <0f> 0b 4c 89 e7 e8 23 a6 15 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 f4
RSP: 0018:ffffc9000d33ef20 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffff88801e29e188 RCX: 958307eefedd5000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 1ffff11003c53c31 R08: ffffffff819f300c R09: fffffbfff1cfa584
R10: dffffc0000000000 R11: fffffbfff1cfa584 R12: ffffe8ffffc38030
R13: dffffc0000000000 R14: ffff88801e29e180 R15: ffff88804f84f000
FS:  000000c001ef5898(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000179c00 CR3: 000000003ef1a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:88 [inline]
 __list_add include/linux/list.h:150 [inline]
 list_add include/linux/list.h:169 [inline]
 add_to_unbuddied+0x2e4/0x4d0 mm/z3fold.c:550
 do_compact_page+0x924/0xc50 mm/z3fold.c:772
 zswap_entry_free+0x2f6/0x440 mm/zswap.c:806
 zswap_load+0x364/0x4a0 mm/zswap.c:1666
 swap_read_folio+0x9b4/0x2690 mm/page_io.c:641
 swap_cluster_readahead+0x3cf/0x710 mm/swap_state.c:689
 swapin_readahead+0x1ba/0xd30 mm/swap_state.c:881
 do_swap_page+0x5c4/0x5c40 mm/memory.c:4411
 handle_pte_fault mm/memory.c:5892 [inline]
 __handle_mm_fault+0x13dd/0x70f0 mm/memory.c:6032
 handle_mm_fault+0x3e5/0x8d0 mm/memory.c:6201
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x419cc7
Code: cc cc cc 55 48 89 e5 48 83 ec 10 0f b6 50 62 f6 c2 01 75 56 48 81 78 68 00 02 00 00 76 2f d0 ea 0f 1f 00 84 d2 74 0c 48 89 da <48> 8b 12 48 83 c3 08 eb 07 48 8b 90 98 00 00 00 48 8b 72 20 48 8b
RSP: 002b:000000c0028abe60 EFLAGS: 00010202
RAX: 00007f9f9e47feb8 RBX: 000000c000179c00 RCX: 000000c000179c00
RDX: 000000c000179c00 RSI: 000000c000179c00 RDI: 0000000000000052
RBP: 000000c0028abe70 R08: 000000c000007180 R09: 000000c000064008
R10: 000000c00a8c4000 R11: 00000000000000b7 R12: 000000c0028abf00
R13: 0000000000000001 R14: 000000c004141500 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xf3/0x130 lib/list_debug.c:29
Code: a6 15 fd 42 80 7c 2d 00 00 74 08 48 89 df e8 24 50 37 fd 49 8b 56 08 48 c7 c7 20 82 60 8c 4c 89 e6 4c 89 f1 e8 ce 52 38 fc 90 <0f> 0b 4c 89 e7 e8 23 a6 15 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 f4
RSP: 0018:ffffc9000d33ef20 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffff88801e29e188 RCX: 958307eefedd5000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 1ffff11003c53c31 R08: ffffffff819f300c R09: fffffbfff1cfa584
R10: dffffc0000000000 R11: fffffbfff1cfa584 R12: ffffe8ffffc38030
R13: dffffc0000000000 R14: ffff88801e29e180 R15: ffff88804f84f000
FS:  000000c001ef5898(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000179c00 CR3: 000000003ef1a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400