zram: Cannot change disksize for initialized device
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WARNING: CPU: 0 PID: 736 at drivers/block/zram/zram_drv.c:2513 read_from_bdev drivers/block/zram/zram_drv.c:-1 [inline]
WARNING: CPU: 0 PID: 736 at drivers/block/zram/zram_drv.c:2513 zram_read_page drivers/block/zram/zram_drv.c:2509 [inline]
WARNING: CPU: 0 PID: 736 at drivers/block/zram/zram_drv.c:2513 zram_bvec_read drivers/block/zram/zram_drv.c:2543 [inline]
WARNING: CPU: 0 PID: 736 at drivers/block/zram/zram_drv.c:2513 zram_bio_read drivers/block/zram/zram_drv.c:3137 [inline]
WARNING: CPU: 0 PID: 736 at drivers/block/zram/zram_drv.c:2513 zram_submit_bio+0x1cb8/0x1e50 drivers/block/zram/zram_drv.c:3194
Modules linked in:
CPU: 0 UID: 0 PID: 736 Comm: syz.9.163 Not tainted syzkaller #0 45964a5c932d45c81e53484b258bbb49855afb35
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:zram_read_page drivers/block/zram/zram_drv.c:2513 [inline]
RIP: 0010:zram_bvec_read drivers/block/zram/zram_drv.c:2543 [inline]
RIP: 0010:zram_bio_read drivers/block/zram/zram_drv.c:3137 [inline]
RIP: 0010:zram_submit_bio+0x1cb8/0x1e50 drivers/block/zram/zram_drv.c:3194
Code: 85 aa 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 54 28 35 fe 0f 0b bb fb ff ff ff 4c 8b 7c 24 08 <0f> 0b 48 c7 c7 00 8d 61 86 89 de 48 8b 54 24 40 e8 c3 4f b2 fd 49
RSP: 0018:ffffc9000101f060 EFLAGS: 00010283
RAX: ffffffff83524b09 RBX: 00000000ffffffea RCX: 0000000000080000
RDX: ffffc90001251000 RSI: 0000000000000288 RDI: 0000000000000289
RBP: ffffc9000101f210 R08: ffff888117dc3d9b R09: 1ffff11022fb87b3
R10: dffffc0000000000 R11: ffffed1022fb87b4 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000001000 R15: ffff88810ded8800
FS:  00007ffbad4726c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c28ce5f CR3: 000000013b046000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 __submit_bio+0x51c/0x9b0 block/blk-core.c:644
 __submit_bio_noacct block/blk-core.c:690 [inline]
 submit_bio_noacct_nocheck+0x5b5/0xab0 block/blk-core.c:753
 submit_bio_noacct+0xc0e/0x1620 block/blk-core.c:874
 submit_bio+0x424/0x5b0 block/blk-core.c:949
 submit_bh_wbc+0x501/0x570 fs/buffer.c:2844
 submit_bh fs/buffer.c:2849 [inline]
 __bh_read fs/buffer.c:3122 [inline]
 bh_read_nowait include/linux/buffer_head.h:450 [inline]
 __block_write_begin_int+0x1305/0x1710 fs/buffer.c:2175
 iomap_write_begin+0x8ed/0x1870 fs/iomap/buffered-io.c:852
 iomap_write_iter fs/iomap/buffered-io.c:980 [inline]
 iomap_file_buffered_write+0x3ca/0xc60 fs/iomap/buffered-io.c:1064
 blkdev_buffered_write block/fops.c:665 [inline]
 blkdev_write_iter+0x555/0x750 block/fops.c:730
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x762/0xfd0 fs/read_write.c:684
 ksys_write+0x145/0x260 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7ffbac59de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffbad472028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffbac825fa0 RCX: 00007ffbac59de99
RDX: 0000000000000006 RSI: 0000200000000480 RDI: 0000000000000005
RBP: 00007ffbac633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffbac826038 R14: 00007ffbac825fa0 R15: 00007ffde82873e8
 </TASK>
---[ end trace 0000000000000000 ]---
zram: Decompression failed! err=-22, page=0