------------[ 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: 3004 Comm: syz-executor.1 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 : df9a5ad0 ip : df9a5b08 fp : df9a5aec r10: 00000000 r9 : ffedc004 r8 : ff7fbf1c r7 : 00000058 r6 : df9a5af0 r5 : 83ee8668 r4 : ffedc004 r3 : df000000 r2 : ffffffd8 r1 : 00000000 r0 : df9a5af0 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8463ed80 DAC: 00000000 Register r0 information: 2-page vmalloc region starting at 0xdf9a4000 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 83ee8668 pointer offset 0 size 40 Register r6 information: 2-page vmalloc region starting at 0xdf9a4000 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 0xdf9a4000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r12 information: 2-page vmalloc region starting at 0xdf9a4000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Process syz-executor.1 (pid: 3004, stack limit = 0xdf9a4000) Stack: (0xdf9a5ad0 to 0xdf9a6000) 5ac0: ff7fbefc 83ee8668 dee29b18 82e98bc0 5ae0: df9a5b4c df9a5af0 804c3dd4 807e85b8 00000002 00000000 00000000 00000000 5b00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5b20: 83ee8668 45d3c72d 83ee8668 00000014 dee29b18 8463e4c4 8463e4c0 8463e4c0 5b40: df9a5b74 df9a5b50 804c6a18 804c3d24 dee29b18 00000000 df9a5be4 00000000 5b60: 8368a400 83ea9000 df9a5bc4 df9a5b78 804bbbf4 804c68c8 804bd118 802e2798 5b80: 00000598 00000000 00100cca 00000000 00000000 45d3c72d 8368a400 00000014 5ba0: 00100cca 00000000 00000000 df9a5be3 00000017 00000000 df9a5c3c df9a5bc8 5bc0: 804bd614 804bbb58 df9a5be3 00000000 00000004 dee29b18 00000016 00000016 5be0: 019a5c0c 00000000 00000000 00000000 00000000 00000000 00000001 00000000 5c00: df9a5c00 df9a5c00 818753b0 45d3c72d 00000406 00000001 00000000 00000016 5c20: 84445d80 00100cca 00000000 df9a5d50 df9a5cb4 df9a5c40 804bd968 804bd45c 5c40: 00000000 45d3c72d 00000001 df9a5d50 00000000 00000000 df9a5c8c df9a5c68 5c60: 8042e9b0 8042e804 df9a5d50 8260cac8 84445d80 020e6000 83ea9000 00000000 5c80: df9a5cb4 45d3c72d 804bcde8 df9a5d50 00000000 00000016 84445d80 83ea9000 5ca0: 00000000 00000000 df9a5d14 df9a5cb8 8047f368 804bd90c 8049445c 80479d1c 5cc0: df9a5d84 8368a400 00000000 00000000 020e6000 84390900 df9a5d14 df9a5ce8 5ce0: 83ea9000 804943e4 fead7003 00000214 8368a400 020e6000 84445d80 020e6000 5d00: 84390900 00000000 df9a5dc4 df9a5d18 80480c4c 8047f174 84390940 ffffffff 5d20: df9a5d88 020e64e8 81c66394 84207e0c 84390940 020e6000 02106fff 84207e0c 5d40: 00000000 ffffffff df9a5d50 df9a5e48 84445d80 00000cc0 000020e6 020e6000 5d60: 020e6000 00000a14 845f1080 8463ed80 00001680 00000000 00000000 00000000 5d80: 00000000 defc9650 00000000 00000000 df9a5dc4 45d3c72d 80480308 df9a5e48 5da0: 020e64e8 00000214 00000207 020e6000 84390900 00000007 df9a5e0c df9a5dc8 5dc0: 80215d94 80480880 ddde4280 8368a400 a3ecc940 7f95a29a df9a5e04 8368a400 5de0: 82c02600 8261d0e0 00000207 020e64e8 df9a5e48 80215c4c 8368a400 00000109 5e00: df9a5e44 df9a5e10 802161dc 80215c58 8080cbbc 00000000 00000000 00000000 5e20: 00000000 81848cfc 00000013 ffffffff df9a5e7c 80200288 df9a5f44 df9a5e48 5e40: 80200ae4 802161b0 df9a5ed0 020e64e8 ffffffe8 00000000 8368a400 df9a5ee0 5e60: df9a5fb0 020e64e0 80200288 8368a400 00000109 df9a5f44 00000018 df9a5e94 5e80: 80426ddc 81848cfc 00000013 ffffffff 8089c158 df9a5ee0 df9a5fb0 80200288 5ea0: 8368a400 df9a5ed0 00000008 00000000 8368a400 80426ddc 8368a400 00000000 5ec0: 00000001 0000c350 0007ad28 00000000 00000000 00000000 00000000 00000000 5ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5f00: 802fb878 ddddb340 00000000 00000000 00000000 45d3c72d 8089c158 8368a400 5f20: df9a5fb0 80200288 00000109 80200288 8368a400 00000109 df9a5fac df9a5f48 5f40: 8020bc18 80426c54 80307668 802fd80c 00000000 81a04f98 df9a5fa4 df9a5f68 5f60: 803097bc 80307618 00000000 00000000 000f4240 00000000 00000000 45d3c72d 5f80: 00000000 45d3c72d 00000000 7ecb2534 00000000 00000109 80200288 8368a400 5fa0: 00000000 df9a5fb0 80200088 8020bb2c 00000000 00000000 7ecb253c 7ecb2534 5fc0: 00000000 7ecb2534 00000000 00000109 00000000 00000000 7ecb2670 000007fc 5fe0: 00000000 7ecb2530 00000001 0007ad28 20000010 00000000 00000000 00000000 Call trace: [<807e85ac>] (sg_init_one) from [<804c3dd4>] (zswap_decompress+0xbc/0x208 mm/zswap.c:1089) r7:82e98bc0 r6:dee29b18 r5:83ee8668 r4:ff7fbefc [<804c3d18>] (zswap_decompress) from [<804c6a18>] (zswap_load+0x15c/0x198 mm/zswap.c:1637) r9:8463e4c0 r8:8463e4c0 r7:8463e4c4 r6:dee29b18 r5:00000014 r4:83ee8668 [<804c68bc>] (zswap_load) from [<804bbbf4>] (swap_read_folio+0xa8/0x498 mm/page_io.c:518) r9:83ea9000 r8:8368a400 r7:00000000 r6:df9a5be4 r5:00000000 r4:dee29b18 [<804bbb4c>] (swap_read_folio) from [<804bd614>] (swap_cluster_readahead+0x1c4/0x34c mm/swap_state.c:684) r10:00000000 r9:00000017 r8:df9a5be3 r7:00000000 r6:00000000 r5:00100cca r4:00000014 [<804bd450>] (swap_cluster_readahead) from [<804bd968>] (swapin_readahead+0x68/0x4a8 mm/swap_state.c:904) r10:df9a5d50 r9:00000000 r8:00100cca r7:84445d80 r6:00000016 r5:00000000 r4:00000001 [<804bd900>] (swapin_readahead) from [<8047f368>] (do_swap_page+0x200/0xcc4 mm/memory.c:4046) r10:00000000 r9:00000000 r8:83ea9000 r7:84445d80 r6:00000016 r5:00000000 r4:df9a5d50 [<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) r10:00000000 r9:84390900 r8:020e6000 r7:84445d80 r6:020e6000 r5:8368a400 r4:00000214 [<80480874>] (handle_mm_fault) from [<80215d94>] (do_page_fault+0x148/0x3a8 arch/arm/mm/fault.c:333) r10:00000007 r9:84390900 r8:020e6000 r7:00000207 r6:00000214 r5:020e64e8 r4:df9a5e48 [<80215c4c>] (do_page_fault) from [<802161dc>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:565) r10:00000109 r9:8368a400 r8:80215c4c r7:df9a5e48 r6:020e64e8 r5:00000207 r4:8261d0e0 [<802161a4>] (do_DataAbort) from [<80200ae4>] (__dabt_svc+0x44/0x60 arch/arm/kernel/entry-armv.S:212) Exception stack(0xdf9a5e48 to 0xdf9a5e90) 5e40: df9a5ed0 020e64e8 ffffffe8 00000000 8368a400 df9a5ee0 5e60: df9a5fb0 020e64e0 80200288 8368a400 00000109 df9a5f44 00000018 df9a5e94 5e80: 80426ddc 81848cfc 00000013 ffffffff r8:80200288 r7:df9a5e7c r6:ffffffff r5:00000013 r4:81848cfc [<80426c48>] (__rseq_handle_notify_resume) from [<8020bc18>] (rseq_handle_notify_resume include/linux/rseq.h:38 [inline]) [<80426c48>] (__rseq_handle_notify_resume) from [<8020bc18>] (resume_user_mode_work include/linux/resume_user_mode.h:62 [inline]) [<80426c48>] (__rseq_handle_notify_resume) from [<8020bc18>] (do_work_pending+0xf8/0x4c0 arch/arm/kernel/signal.c:631) r10:00000109 r9:8368a400 r8:80200288 r7:00000109 r6:80200288 r5:df9a5fb0 r4:8368a400 [<8020bb20>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x24) Exception stack(0xdf9a5fb0 to 0xdf9a5ff8) 5fa0: 00000000 00000000 7ecb253c 7ecb2534 5fc0: 00000000 7ecb2534 00000000 00000109 00000000 00000000 7ecb2670 000007fc 5fe0: 00000000 7ecb2530 00000001 0007ad28 20000010 00000000 r9:8368a400 r8:80200288 r7:00000109 r6:00000000 r5:7ecb2534 r4:00000000 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