------------[ 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: 9045 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 : [<807e8518>] lr : [<807e690c>] psr: 80000113 sp : ee621ad0 ip : ee621b08 fp : ee621aec r10: 00000000 r9 : ffedc004 r8 : ff7fbf1c r7 : 000008bc r6 : ee621af0 r5 : 8c8b5460 r4 : ffedc004 r3 : df000000 r2 : ffffffd8 r1 : 00000000 r0 : ee621af0 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8c713980 DAC: 00000000 Register r0 information: 2-page vmalloc region starting at 0xee620000 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 8c8b5460 pointer offset 0 size 40 Register r6 information: 2-page vmalloc region starting at 0xee620000 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 0xee620000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r12 information: 2-page vmalloc region starting at 0xee620000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Process syz-executor.1 (pid: 9045, stack limit = 0xee620000) Stack: (0xee621ad0 to 0xee622000) 1ac0: ff7fbefc 8c8b5460 deda3460 841f9980 1ae0: ee621b4c ee621af0 804c3dd4 807e8488 00000002 00000000 00000000 00000000 1b00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1b20: 00000020 f2e83785 8c8b5460 00000020 deda3460 84a0e9c4 84a0e9c0 84a0e9c0 1b40: ee621b74 ee621b50 804c6a18 804c3d24 deda3460 00000000 ee621be4 00000000 1b60: 8c4c3000 83eea900 ee621bc4 ee621b78 804bbbf4 804c68c8 804bd118 802e2798 1b80: 8c4c3000 00000000 00100cca 00000000 00000000 f2e83785 ee621be3 00000020 1ba0: 00100cca 00000000 00000000 ee621be3 00000027 00000000 ee621c3c ee621bc8 1bc0: 804bd614 804bbb58 ee621be3 00000000 0072a525 deda3460 00000023 00000023 1be0: 01dd0280 00000000 00000000 00000000 00000000 00000000 00000001 00000000 1c00: ee621c00 ee621c00 81875270 f2e83785 00000406 00000001 00000000 00000023 1c20: 849da5a0 00100cca 00000000 ee621d50 ee621cb4 ee621c40 804bd968 804bd45c 1c40: 00000000 f2e83785 00000001 ee621d50 00000000 00000000 ee621c8c ee621c68 1c60: 8042e9b0 8042e804 ee621d50 8260cac8 849da5a0 02065000 83eea900 00000000 1c80: ee621cb4 f2e83785 804bcde8 ee621d50 00000000 00000023 849da5a0 83eea900 1ca0: 00000000 00000000 ee621d14 ee621cb8 8047f368 804bd90c 8049445c 80479d1c 1cc0: ee621d84 8c4c3000 00000000 00000000 02065000 84120300 ee621d14 ee621ce8 1ce0: 83eea900 804943e4 fef0d003 00000214 8c4c3000 02065000 849da5a0 02065000 1d00: 84120300 00000000 ee621dc4 ee621d18 80480c4c 8047f174 84120340 ffffffff 1d20: ee621d88 020654e8 81c66394 84268b0c 84120340 02065000 02085fff 84268b0c 1d40: 00000000 ffffffff ee621d50 ee621e48 849da5a0 00000cc0 00002065 02065000 1d60: 02065000 00000a14 8c7af080 8c713980 00002380 00000000 00000000 00000000 1d80: 00000000 defd2de8 00000000 00000000 ee621dc4 f2e83785 80480308 ee621e48 1da0: 020654e8 00000214 00000207 02065000 84120300 00000007 ee621e0c ee621dc8 1dc0: 80215d94 80480880 ddde4280 8c4c3000 a3e947b0 96a37ae6 ee621e04 8c4c3000 1de0: 82c02600 8261d0e0 00000207 020654e8 ee621e48 80215c4c 8c4c3000 00000109 1e00: ee621e44 ee621e10 802161dc 80215c58 8080ca8c 00000000 00000000 00000000 1e20: 00000000 81848bcc 00000013 ffffffff ee621e7c 80200288 ee621f44 ee621e48 1e40: 80200ae4 802161b0 ee621ed0 020654e8 ffffffe8 00000000 8c4c3000 ee621ee0 1e60: ee621fb0 020654e0 80200288 8c4c3000 00000109 ee621f44 00000018 ee621e94 1e80: 80426ddc 81848bcc 00000013 ffffffff 8089c028 ee621ee0 ee621fb0 80200288 1ea0: 8c4c3000 ee621ed0 00000008 00000000 8c4c3000 80426ddc 8c4c3000 00000000 1ec0: 00000001 0000c350 0007ad28 00000000 00000000 00000000 00000000 00000000 1ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1f00: 802fb878 ddddb340 00000000 00000000 00000000 f2e83785 8089c028 8c4c3000 1f20: ee621fb0 80200288 00000109 80200288 8c4c3000 00000109 ee621fac ee621f48 1f40: 8020bc18 80426c54 80307668 802fd80c 00000000 81a04f98 ee621fa4 ee621f68 1f60: 803097bc 80307618 00000000 00000000 000f4240 00000000 00000000 f2e83785 1f80: 00000000 f2e83785 00000000 7eeb9534 00000000 00000109 80200288 8c4c3000 1fa0: 00000000 ee621fb0 80200088 8020bb2c 00000000 00000000 7eeb953c 7eeb9534 1fc0: 00000000 7eeb9534 00000000 00000109 00000000 00000000 7eeb9670 0000197b 1fe0: 00000000 7eeb9530 00000001 0007ad28 20000010 00000000 00000000 00000000 Call trace: [<807e847c>] (sg_init_one) from [<804c3dd4>] (zswap_decompress+0xbc/0x208 mm/zswap.c:1089) r7:841f9980 r6:deda3460 r5:8c8b5460 r4:ff7fbefc [<804c3d18>] (zswap_decompress) from [<804c6a18>] (zswap_load+0x15c/0x198 mm/zswap.c:1637) r9:84a0e9c0 r8:84a0e9c0 r7:84a0e9c4 r6:deda3460 r5:00000020 r4:8c8b5460 [<804c68bc>] (zswap_load) from [<804bbbf4>] (swap_read_folio+0xa8/0x498 mm/page_io.c:518) r9:83eea900 r8:8c4c3000 r7:00000000 r6:ee621be4 r5:00000000 r4:deda3460 [<804bbb4c>] (swap_read_folio) from [<804bd614>] (swap_cluster_readahead+0x1c4/0x34c mm/swap_state.c:684) r10:00000000 r9:00000027 r8:ee621be3 r7:00000000 r6:00000000 r5:00100cca r4:00000020 [<804bd450>] (swap_cluster_readahead) from [<804bd968>] (swapin_readahead+0x68/0x4a8 mm/swap_state.c:904) r10:ee621d50 r9:00000000 r8:00100cca r7:849da5a0 r6:00000023 r5:00000000 r4:00000001 [<804bd900>] (swapin_readahead) from [<8047f368>] (do_swap_page+0x200/0xcc4 mm/memory.c:4046) r10:00000000 r9:00000000 r8:83eea900 r7:849da5a0 r6:00000023 r5:00000000 r4:ee621d50 [<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 r9:84120300 r8:02065000 r7:849da5a0 r6:02065000 r5:8c4c3000 r4:00000214 [<80480874>] (handle_mm_fault) from [<80215d94>] (do_page_fault+0x148/0x3a8 arch/arm/mm/fault.c:333) r10:00000007 r9:84120300 r8:02065000 r7:00000207 r6:00000214 r5:020654e8 r4:ee621e48 [<80215c4c>] (do_page_fault) from [<802161dc>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:565) r10:00000109 r9:8c4c3000 r8:80215c4c r7:ee621e48 r6:020654e8 r5:00000207 r4:8261d0e0 [<802161a4>] (do_DataAbort) from [<80200ae4>] (__dabt_svc+0x44/0x60 arch/arm/kernel/entry-armv.S:212) Exception stack(0xee621e48 to 0xee621e90) 1e40: ee621ed0 020654e8 ffffffe8 00000000 8c4c3000 ee621ee0 1e60: ee621fb0 020654e0 80200288 8c4c3000 00000109 ee621f44 00000018 ee621e94 1e80: 80426ddc 81848bcc 00000013 ffffffff r8:80200288 r7:ee621e7c r6:ffffffff r5:00000013 r4:81848bcc [<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 r9:8c4c3000 r8:80200288 r7:00000109 r6:80200288 r5:ee621fb0 r4:8c4c3000 [<8020bb20>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x24) Exception stack(0xee621fb0 to 0xee621ff8) 1fa0: 00000000 00000000 7eeb953c 7eeb9534 1fc0: 00000000 7eeb9534 00000000 00000109 00000000 00000000 7eeb9670 0000197b 1fe0: 00000000 7eeb9530 00000001 0007ad28 20000010 00000000 r9:8c4c3000 r8:80200288 r7:00000109 r6:00000000 r5:7eeb9534 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