oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz1,mems_allowed=0,oom_memcg=/syz1,task_memcg=/syz1,task=syz-executor.1,pid=10496,uid=0 Memory cgroup out of memory: Killed process 10497 (syz-executor.1) total-vm:33812kB, anon-rss:0kB, file-rss:640kB, shmem-rss:0kB, UID:0 pgtables:36kB oom_score_adj:1000 ------------[ 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: 7230 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: 80000013 sp : e0b35ad0 ip : e0b35b08 fp : e0b35aec r10: 00000000 r9 : ffefd004 r8 : ff7e7f1c r7 : 00000245 r6 : e0b35af0 r5 : 83a3f6e0 r4 : ffefd004 r3 : df000000 r2 : ffffffd8 r1 : 00000000 r0 : e0b35af0 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 9bd8ebc0 DAC: fffffffd Register r0 information: 2-page vmalloc region starting at 0xe0b34000 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 83a3f6e0 pointer offset 0 size 40 Register r6 information: 2-page vmalloc region starting at 0xe0b34000 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 0xe0b34000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Register r12 information: 2-page vmalloc region starting at 0xe0b34000 allocated at kernel_clone+0xac/0x3cc kernel/fork.c:2796 Process syz-executor.1 (pid: 7230, stack limit = 0xe0b34000) Stack: (0xe0b35ad0 to 0xe0b36000) 5ac0: ff7e7efc 83a3f6e0 defd8690 841f0a40 5ae0: e0b35b4c e0b35af0 804c3dd4 807e8488 00000002 00000000 00000000 00000000 5b00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5b20: 00000050 601db659 83a3f6e0 00000050 defd8690 84413104 84413100 84413100 5b40: e0b35b74 e0b35b50 804c6a18 804c3d24 defd8690 00000000 e0b35be4 00000000 5b60: 8b42e000 83d09400 e0b35bc4 e0b35b78 804bbbf4 804c68c8 804bd118 802e2798 5b80: e0b35bcc 00000000 00100cca 00000000 00000000 601db659 dddd02c0 00000050 5ba0: 00100cca 00000000 00000000 e0b35be3 00000057 00000000 e0b35c3c e0b35bc8 5bc0: 804bd614 804bbb58 e0b35be3 00000000 20000093 defd8690 00000056 00000056 5be0: 0128e97c 00000000 00000000 00000000 00000000 00000000 00000001 00000000 5c00: e0b35c00 e0b35c00 81875270 601db659 00000406 00000001 00000000 00000056 5c20: 83f8aa20 00100cca 00000000 e0b35d50 e0b35cb4 e0b35c40 804bd968 804bd45c 5c40: 00000000 601db659 e0b35cb8 e0b35d50 00000000 00000000 e0b35c8c e0b35c68 5c60: 8042e9b0 8042e804 e0b35d50 8260cac8 83f8aa20 01ba1000 83d09400 00000000 5c80: e0b35cb4 601db659 804bcde8 e0b35d50 00000000 00000056 83f8aa20 83d09400 5ca0: 00000000 00000000 e0b35d14 e0b35cb8 8047f368 804bd90c 8049445c 80479d1c 5cc0: e0b35d84 8b42e000 00000000 00000000 01ba1000 8f958300 e0b35d14 e0b35ce8 5ce0: 83d09400 804943e4 9bdc2003 00000214 8b42e000 01ba1000 83f8aa20 01ba1000 5d00: 8f958300 00000000 e0b35dc4 e0b35d18 80480c4c 8047f174 8f958340 ffffffff 5d20: e0b35d88 01ba14e8 81c66394 83fdc70c 8f958340 01ba1000 01bc1fff 83fdc70c 5d40: 00000000 ffffffff e0b35d50 e0b35e48 83f8aa20 00000cc0 00001ba1 01ba1000 5d60: 01ba1000 00000a14 8f9c9068 9bd8ebc0 00005680 00000000 00000000 00000000 5d80: 00000000 de1e3f5c 00000000 00000000 e0b35dc4 601db659 80480308 e0b35e48 5da0: 01ba14e8 00000214 00000207 01ba1000 8f958300 00000007 e0b35e0c e0b35dc8 5dc0: 80215d94 80480880 dddd0280 8b42e000 a3e94028 8be67c87 e0b35e04 8b42e000 5de0: 82c02600 8261d0e0 00000207 01ba14e8 e0b35e48 80215c4c 8b42e000 00000109 5e00: e0b35e44 e0b35e10 802161dc 80215c58 8080ca8c 00000000 00000000 00000000 5e20: 00000000 81848bcc 00000013 ffffffff e0b35e7c 80200288 e0b35f44 e0b35e48 5e40: 80200ae4 802161b0 e0b35ed0 01ba14e8 ffffffe8 00000000 8b42e000 e0b35ee0 5e60: e0b35fb0 01ba14e0 80200288 8b42e000 00000109 e0b35f44 00000018 e0b35e94 5e80: 80426ddc 81848bcc 00000013 ffffffff 8089c028 e0b35ee0 e0b35fb0 80200288 5ea0: 8b42e000 e0b35ed0 00000008 00000000 8b42e000 80426ddc 8b42e000 00000000 5ec0: 00000001 0000c350 0007ad28 00000000 00000000 00000000 00000000 00000000 5ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5f00: 802fb878 dddc7340 00000000 00000000 00000000 601db659 8089c028 8b42e000 5f20: e0b35fb0 80200288 00000109 80200288 8b42e000 00000109 e0b35fac e0b35f48 5f40: 8020bc18 80426c54 80307668 802fd80c 00000000 81a04f98 e0b35fa4 e0b35f68 5f60: 803097bc 80307618 00000000 00000000 000f4240 00000000 00000000 601db659 5f80: 00000000 601db659 00000000 7eeea534 00000000 00000109 80200288 8b42e000 5fa0: 00000000 e0b35fb0 80200088 8020bb2c 00000000 00000000 7eeea53c 7eeea534 5fc0: 00000000 7eeea534 00000000 00000109 00000000 00000000 7eeea670 00001ce4 5fe0: 00000000 7eeea530 00000001 0007ad28 20000010 00000000 00000000 00000000 Call trace: [<807e847c>] (sg_init_one) from [<804c3dd4>] (zswap_decompress+0xbc/0x208 mm/zswap.c:1089) r7:841f0a40 r6:defd8690 r5:83a3f6e0 r4:ff7e7efc [<804c3d18>] (zswap_decompress) from [<804c6a18>] (zswap_load+0x15c/0x198 mm/zswap.c:1637) r9:84413100 r8:84413100 r7:84413104 r6:defd8690 r5:00000050 r4:83a3f6e0 [<804c68bc>] (zswap_load) from [<804bbbf4>] (swap_read_folio+0xa8/0x498 mm/page_io.c:518) r9:83d09400 r8:8b42e000 r7:00000000 r6:e0b35be4 r5:00000000 r4:defd8690 [<804bbb4c>] (swap_read_folio) from [<804bd614>] (swap_cluster_readahead+0x1c4/0x34c mm/swap_state.c:684) r10:00000000 r9:00000057 r8:e0b35be3 r7:00000000 r6:00000000 r5:00100cca r4:00000050 [<804bd450>] (swap_cluster_readahead) from [<804bd968>] (swapin_readahead+0x68/0x4a8 mm/swap_state.c:904) r10:e0b35d50 r9:00000000 r8:00100cca r7:83f8aa20 r6:00000056 r5:00000000 r4:00000001 [<804bd900>] (swapin_readahead) from [<8047f368>] (do_swap_page+0x200/0xcc4 mm/memory.c:4046) r10:00000000 r9:00000000 r8:83d09400 r7:83f8aa20 r6:00000056 r5:00000000 r4:e0b35d50 [<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 r9:8f958300 r8:01ba1000 r7:83f8aa20 r6:01ba1000 r5:8b42e000 r4:00000214 [<80480874>] (handle_mm_fault) from [<80215d94>] (do_page_fault+0x148/0x3a8 arch/arm/mm/fault.c:333) r10:00000007 r9:8f958300 r8:01ba1000 r7:00000207 r6:00000214 r5:01ba14e8 r4:e0b35e48 [<80215c4c>] (do_page_fault) from [<802161dc>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:565) r10:00000109 r9:8b42e000 r8:80215c4c r7:e0b35e48 r6:01ba14e8 r5:00000207 r4:8261d0e0 [<802161a4>] (do_DataAbort) from [<80200ae4>] (__dabt_svc+0x44/0x60 arch/arm/kernel/entry-armv.S:212) Exception stack(0xe0b35e48 to 0xe0b35e90) 5e40: e0b35ed0 01ba14e8 ffffffe8 00000000 8b42e000 e0b35ee0 5e60: e0b35fb0 01ba14e0 80200288 8b42e000 00000109 e0b35f44 00000018 e0b35e94 5e80: 80426ddc 81848bcc 00000013 ffffffff r8:80200288 r7:e0b35e7c 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 r9:8b42e000 r8:80200288 r7:00000109 r6:80200288 r5:e0b35fb0 r4:8b42e000 [<8020bb20>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x24) Exception stack(0xe0b35fb0 to 0xe0b35ff8) 5fa0: 00000000 00000000 7eeea53c 7eeea534 5fc0: 00000000 7eeea534 00000000 00000109 00000000 00000000 7eeea670 00001ce4 5fe0: 00000000 7eeea530 00000001 0007ad28 20000010 00000000 r9:8b42e000 r8:80200288 r7:00000109 r6:00000000 r5:7eeea534 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