------------[ cut here ]------------ kernel BUG at include/linux/scatterlist.h:187! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 17245 Comm: syz-executor.0 Not tainted 6.9.0-rc1-syzkaller #0 Hardware name: ARM-Versatile Express PC is at sg_set_buf include/linux/scatterlist.h:187 [inline] PC is at sg_init_one+0x9c/0xa8 lib/scatterlist.c:143 LR is at sg_init_table+0x2c/0x40 lib/scatterlist.c:128 pc : [<807e8648>] lr : [<807e6a3c>] psr: 80000113 sp : dff25c38 ip : dff25c70 fp : dff25c54 r10: 00000000 r9 : ffefd004 r8 : ff7e7f1c r7 : 0000009c r6 : dff25c58 r5 : 853764d8 r4 : ffefd004 r3 : df000000 r2 : ffffffd8 r1 : 00000000 r0 : dff25c58 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 847cf6c0 DAC: fffffffd Register r0 information: 2-page vmalloc region starting at 0xdff24000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r1 information: NULL pointer Register r2 information: non-paged memory Register r3 information: non-paged memory Register r4 information: non-paged memory Register r5 information: slab vmap_area start 853764d8 pointer offset 0 size 40 Register r6 information: 2-page vmalloc region starting at 0xdff24000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r7 information: non-paged memory Register r8 information: 0-page vmalloc region starting at 0xff7d8000 allocated at pcpu_get_vm_areas+0x0/0x12c8 mm/vmalloc.c:3064 Register r9 information: non-paged memory Register r10 information: NULL pointer Register r11 information: 2-page vmalloc region starting at 0xdff24000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r12 information: 2-page vmalloc region starting at 0xdff24000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Process syz-executor.0 (pid: 17245, stack limit = 0xdff24000) Stack: (0xdff25c38 to 0xdff26000) 5c20: ff7e7efc 853764d8 5c40: dee2692c 840c6840 dff25cb4 dff25c58 804c3dd4 807e85b8 00000002 00000000 5c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5c80: 00000000 00000000 000006c8 97ac2f59 853764d8 000006c8 dee2692c 84298584 5ca0: 84298580 84298580 dff25cdc dff25cb8 804c6a18 804c3d24 dee2692c 00000000 5cc0: dff25d4c 00000000 82f08000 842b6b00 dff25d2c dff25ce0 804bbbf4 804c68c8 5ce0: 804bd118 802e2798 804d9d08 00000000 00100cca 00000000 00000000 97ac2f59 5d00: 00000000 000006c8 00100cca 00000000 00000000 dff25d4b 000006cf 00000000 5d20: dff25da4 dff25d30 804bd614 804bbb58 dff25d4b 00000000 00cf8fff dee2692c 5d40: 000006cf 000006cf 01f25d50 00000000 00000000 00000000 00000000 00000000 5d60: 00000001 00000000 dff25d68 dff25d68 818753b0 97ac2f59 00000406 00000001 5d80: 00000000 000006cf 84283420 00100cca 00000000 dff25eb8 dff25e1c dff25da8 5da0: 804bd968 804bd45c 00000000 97ac2f59 00000001 dff25eb8 00000000 00000000 5dc0: dff25df4 dff25dd0 8042e9b0 8042e804 dff25eb8 8260cac8 84283420 7ef24000 5de0: 842b6b00 00000000 dff25e1c 97ac2f59 804bcde8 dff25eb8 00000000 000006cf 5e00: 84283420 842b6b00 00000000 00000040 dff25e7c dff25e20 8047f368 804bd90c 5e20: 8049445c 80479d1c dff25eec 82f08000 00000000 00000000 82f08000 85314000 5e40: dff25e7c dff25e50 842b6b00 804943e4 fe226003 00001254 82f08000 7ef24544 5e60: 84283420 82f08000 85314000 00000040 dff25f2c dff25e80 80480c4c 8047f174 5e80: fae1ffdf 04e00000 00000000 ffffffff 8089c158 dff25ee0 dff25ecc dff25ea8 5ea0: 8027caf4 802ac7ac 00000000 81c66394 dff25eb8 dff25fb0 84283420 00000cc0 5ec0: 0007efff 7ef24000 7ef24544 00001a54 84c1dfb8 847cf6c8 0006cf80 00000000 5ee0: 00000000 00000000 00000000 defb5d6c 00000000 00000000 7ef24fff 97ac2f59 5f00: 00000000 dff25fb0 7ef24544 00000254 00000207 82f08000 85314000 00000007 5f20: dff25f74 dff25f30 80215e14 80480880 82f08000 00000109 dff25fac dff25f48 5f40: 00000000 84283420 80307668 8261d0e0 00000207 7ef24544 dff25fb0 80215c4c 5f60: 00000000 7ef24670 dff25fac dff25f78 802161dc 80215c58 00000000 00000000 5f80: dff25fac 97ac2f59 00000000 0007ace0 00000010 ffffffff 82f08000 824a9044 5fa0: 00000000 dff25fb0 80200e3c 802161b0 00000000 00000000 de49b600 0011b150 5fc0: 00000000 7ef24534 00000000 00000109 00000000 00000000 7ef24670 00001530 5fe0: 00000000 7ef24530 00000001 0007ace0 00000010 ffffffff 00000000 00000000 Call trace: [<807e85ac>] (sg_init_one) from [<804c3dd4>] (zswap_decompress+0xbc/0x208 mm/zswap.c:1089) r7:840c6840 r6:dee2692c r5:853764d8 r4:ff7e7efc [<804c3d18>] (zswap_decompress) from [<804c6a18>] (zswap_load+0x15c/0x198 mm/zswap.c:1637) r9:84298580 r8:84298580 r7:84298584 r6:dee2692c r5:000006c8 r4:853764d8 [<804c68bc>] (zswap_load) from [<804bbbf4>] (swap_read_folio+0xa8/0x498 mm/page_io.c:518) r9:842b6b00 r8:82f08000 r7:00000000 r6:dff25d4c r5:00000000 r4:dee2692c [<804bbb4c>] (swap_read_folio) from [<804bd614>] (swap_cluster_readahead+0x1c4/0x34c mm/swap_state.c:684) r10:00000000 r9:000006cf r8:dff25d4b r7:00000000 r6:00000000 r5:00100cca r4:000006c8 [<804bd450>] (swap_cluster_readahead) from [<804bd968>] (swapin_readahead+0x68/0x4a8 mm/swap_state.c:904) r10:dff25eb8 r9:00000000 r8:00100cca r7:84283420 r6:000006cf r5:00000000 r4:00000001 [<804bd900>] (swapin_readahead) from [<8047f368>] (do_swap_page+0x200/0xcc4 mm/memory.c:4046) r10:00000040 r9:00000000 r8:842b6b00 r7:84283420 r6:000006cf r5:00000000 r4:dff25eb8 [<8047f168>] (do_swap_page) from [<80480c4c>] (handle_pte_fault mm/memory.c:5301 [inline]) [<8047f168>] (do_swap_page) from [<80480c4c>] (__handle_mm_fault mm/memory.c:5439 [inline]) [<8047f168>] (do_swap_page) from [<80480c4c>] (handle_mm_fault+0x3d8/0x12b8 mm/memory.c:5604) r10:00000040 r9:85314000 r8:82f08000 r7:84283420 r6:7ef24544 r5:82f08000 r4:00001254 [<80480874>] (handle_mm_fault) from [<80215e14>] (do_page_fault+0x1c8/0x3a8 arch/arm/mm/fault.c:299) r10:00000007 r9:85314000 r8:82f08000 r7:00000207 r6:00000254 r5:7ef24544 r4:dff25fb0 [<80215c4c>] (do_page_fault) from [<802161dc>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:565) r10:7ef24670 r9:00000000 r8:80215c4c r7:dff25fb0 r6:7ef24544 r5:00000207 r4:8261d0e0 [<802161a4>] (do_DataAbort) from [<80200e3c>] (__dabt_usr+0x5c/0x60 arch/arm/kernel/entry-armv.S:427) Exception stack(0xdff25fb0 to 0xdff25ff8) 5fa0: 00000000 00000000 de49b600 0011b150 5fc0: 00000000 7ef24534 00000000 00000109 00000000 00000000 7ef24670 00001530 5fe0: 00000000 7ef24530 00000001 0007ace0 00000010 ffffffff r8:824a9044 r7:82f08000 r6:ffffffff r5:00000010 r4:0007ace0 Code: 1a000004 e1822003 e8860094 e89da8f0 (e7f001f2) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 1a000004 bne 0x18 4: e1822003 orr r2, r2, r3 8: e8860094 stm r6, {r2, r4, r7} c: e89da8f0 ldm sp, {r4, r5, r6, r7, fp, sp, pc} * 10: e7f001f2 udf #18 <-- trapping instruction