------------[ cut here ]------------ kernel BUG at include/linux/scatterlist.h:187! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 4919 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 : dfd09c38 ip : dfd09c70 fp : dfd09c54 r10: 00000000 r9 : ffedc004 r8 : ff7fbf1c r7 : 0000003e r6 : dfd09c58 r5 : 8417be88 r4 : ffedc004 r3 : df000000 r2 : ffffffd8 r1 : 00000000 r0 : dfd09c58 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 85104c00 DAC: 00000000 Register r0 information: 2-page vmalloc region starting at 0xdfd08000 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 8417be88 pointer offset 0 size 40 Register r6 information: 2-page vmalloc region starting at 0xdfd08000 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 0xdfd08000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r12 information: 2-page vmalloc region starting at 0xdfd08000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Process syz-executor.0 (pid: 4919, stack limit = 0xdfd08000) Stack: (0xdfd09c38 to 0xdfd0a000) 9c20: ff7fbefc 8417be88 9c40: dee35668 83fc4c40 dfd09cb4 dfd09c58 804c3dd4 807e85b8 00000002 00000000 9c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9c80: 00000000 00000000 00000001 42b44b08 8417be88 00000001 dee35668 8472e804 9ca0: 8472e800 8472e800 dfd09cdc dfd09cb8 804c6a18 804c3d24 dee35668 00000001 9cc0: dfd09d4c 00000000 83720c00 84733e00 dfd09d2c dfd09ce0 804bbbf4 804c68c8 9ce0: 804bd118 802e2798 802033d4 00000000 00100cca 00000000 00000000 42b44b08 9d00: 8189aa28 00000001 00100cca 00000000 00000000 dfd09d4b 00000007 00000000 9d20: dfd09da4 dfd09d30 804bd614 804bbb58 dfd09d4b 00000000 dfd09d6c dee35668 9d40: 00000001 00000001 01de4280 00000000 00000000 00000000 00000000 00000000 9d60: 00000001 00000000 dfd09d68 dfd09d68 818753b0 42b44b08 00000406 00000001 9d80: 00000000 00000001 84700360 00100cca 00000000 dfd09eb8 dfd09e1c dfd09da8 9da0: 804bd968 804bd45c 00000000 42b44b08 00000001 dfd09eb8 00000000 00000000 9dc0: dfd09df4 dfd09dd0 8042e9b0 8042e804 dfd09eb8 8260cac8 84700360 20000000 9de0: 84733e00 00000000 dfd09e1c 42b44b08 804bcde8 dfd09eb8 00000000 00000001 9e00: 84700360 84733e00 00000000 00000040 dfd09e7c dfd09e20 8047f368 804bd90c 9e20: 8049445c 80479d1c dfd09eec 83720c00 00000000 00000000 83720c00 83f95500 9e40: dfd09e7c dfd09e50 84733e00 804943e4 fe468003 00001255 83720c00 20000140 9e60: 84700360 83720c00 83f95500 00000040 dfd09f2c dfd09e80 80480c4c 8047f174 9e80: dfd09ee0 dfd09fb0 dfd09ea4 dfd09e98 8089c158 dfd09ee0 dfd09ecc dfd09ea8 9ea0: 8027caf4 802ac7ac 00000008 81c66394 dfd09eb8 dfd09fb0 84700360 00000cc0 9ec0: 00020000 20000000 20000140 00001a55 85168800 85104c00 00000180 00000000 9ee0: 00000000 00000000 00000000 defbaeb4 00000000 00000000 20ffffff 42b44b08 9f00: 00000000 dfd09fb0 20000140 00000255 00000a07 83720c00 83f95500 00000002 9f20: dfd09f74 dfd09f30 80215e14 80480880 81897c90 81897b5c dfd09f5c dfd09f48 9f40: 8024c880 84700360 40000000 8261d0e0 00000a07 20000140 dfd09fb0 80215c4c 9f60: 0014c29c 7ed504dc dfd09fac dfd09f78 802161dc 80215c58 dfd09fac dfd09f88 9f80: 8020ca6c 80203060 0006b3f4 0001d440 40000010 ffffffff 83720c00 824a9044 9fa0: 00000000 dfd09fb0 80200e3c 802161b0 00000000 00000000 00000000 20000140 9fc0: 00000002 00000000 00000000 000001f4 fffffffe 0014c29c 7ed504dc 0002be10 9fe0: 00d83590 7ed503a8 0001d150 0001d440 40000010 ffffffff 00000000 00000000 Call trace: [<807e85ac>] (sg_init_one) from [<804c3dd4>] (zswap_decompress+0xbc/0x208 mm/zswap.c:1089) r7:83fc4c40 r6:dee35668 r5:8417be88 r4:ff7fbefc [<804c3d18>] (zswap_decompress) from [<804c6a18>] (zswap_load+0x15c/0x198 mm/zswap.c:1637) r9:8472e800 r8:8472e800 r7:8472e804 r6:dee35668 r5:00000001 r4:8417be88 [<804c68bc>] (zswap_load) from [<804bbbf4>] (swap_read_folio+0xa8/0x498 mm/page_io.c:518) r9:84733e00 r8:83720c00 r7:00000000 r6:dfd09d4c r5:00000001 r4:dee35668 [<804bbb4c>] (swap_read_folio) from [<804bd614>] (swap_cluster_readahead+0x1c4/0x34c mm/swap_state.c:684) r10:00000000 r9:00000007 r8:dfd09d4b r7:00000000 r6:00000000 r5:00100cca r4:00000001 [<804bd450>] (swap_cluster_readahead) from [<804bd968>] (swapin_readahead+0x68/0x4a8 mm/swap_state.c:904) r10:dfd09eb8 r9:00000000 r8:00100cca r7:84700360 r6:00000001 r5:00000000 r4:00000001 [<804bd900>] (swapin_readahead) from [<8047f368>] (do_swap_page+0x200/0xcc4 mm/memory.c:4046) r10:00000040 r9:00000000 r8:84733e00 r7:84700360 r6:00000001 r5:00000000 r4:dfd09eb8 [<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 r9:83f95500 r8:83720c00 r7:84700360 r6:20000140 r5:83720c00 r4:00001255 [<80480874>] (handle_mm_fault) from [<80215e14>] (do_page_fault+0x1c8/0x3a8 arch/arm/mm/fault.c:299) r10:00000002 r9:83f95500 r8:83720c00 r7:00000a07 r6:00000255 r5:20000140 r4:dfd09fb0 [<80215c4c>] (do_page_fault) from [<802161dc>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:565) r10:7ed504dc r9:0014c29c r8:80215c4c r7:dfd09fb0 r6:20000140 r5:00000a07 r4:8261d0e0 [<802161a4>] (do_DataAbort) from [<80200e3c>] (__dabt_usr+0x5c/0x60 arch/arm/kernel/entry-armv.S:427) Exception stack(0xdfd09fb0 to 0xdfd09ff8) 9fa0: 00000000 00000000 00000000 20000140 9fc0: 00000002 00000000 00000000 000001f4 fffffffe 0014c29c 7ed504dc 0002be10 9fe0: 00d83590 7ed503a8 0001d150 0001d440 40000010 ffffffff r8:824a9044 r7:83720c00 r6:ffffffff r5:40000010 r4:0001d440 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