syzbot

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WARNING: CPU: 0 PID: 11653 at fs/bcachefs/btree_iter.c:3194 __bch2_trans_kmalloc+0x50e/0x9d0 fs/bcachefs/btree_iter.c:3194
Modules linked in:
CPU: 0 UID: 0 PID: 11653 Comm: syz.5.685 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__bch2_trans_kmalloc+0x50e/0x9d0 fs/bcachefs/btree_iter.c:3194
Code: 00 28 00 00 e8 03 60 35 00 48 c7 c0 75 f7 ff ff 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 49 ff da 06 cc e8 a3 6b 9f fd 90 <0f> 0b 90 e9 d4 fb ff ff e8 95 6b 9f fd 90 0f 0b 90 e9 dc fd ff ff
RSP: 0018:ffffc90004a2edb0 EFLAGS: 00010283
RAX: ffffffff841ef09d RBX: ffff888079f20000 RCX: 0000000000080000
RDX: ffffc90005b4a000 RSI: 0000000000050331 RDI: 0000000000050332
RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90004a2f0c0 R11: fffffbfff1e3a7c7 R12: dffffc0000000000
R13: ffff888079f20030 R14: 1ffff1100f3e4000 R15: 0000000000000011
FS:  00007fb44386e6c0(0000) GS:ffff8881268c4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f032a68e00a CR3: 00000000547b2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bch2_trans_kmalloc_nomemzero_ip fs/bcachefs/btree_iter.h:586 [inline]
 bch2_trans_kmalloc_nomemzero fs/bcachefs/btree_iter.h:621 [inline]
 bch2_alloc_sectors_start_trans+0x1d6b/0x1e90 fs/bcachefs/alloc_foreground.c:1251
 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:320 [inline]
 bch2_btree_reserve_get+0x641/0x1820 fs/bcachefs/btree_update_interior.c:534
 bch2_btree_update_start+0x18ff/0x1de0 fs/bcachefs/btree_update_interior.c:1289
 bch2_btree_split_leaf+0x14b/0x8e0 fs/bcachefs/btree_update_interior.c:1921
 bch2_trans_commit_error+0x1b7/0x1130 fs/bcachefs/btree_trans_commit.c:914
 __bch2_trans_commit+0x1bb5/0x8870 fs/bcachefs/btree_trans_commit.c:1104
 bch2_trans_commit fs/bcachefs/btree_update.h:241 [inline]
 bch2_set_quota+0x68f/0x910 fs/bcachefs/quota.c:872
 quota_setquota+0x4b4/0x540 fs/quota/quota.c:310
 __do_sys_quotactl fs/quota/quota.c:961 [inline]
 __se_sys_quotactl+0x279/0x950 fs/quota/quota.c:917
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb44560ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb44386e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fb445835fa0 RCX: 00007fb44560ebe9
RDX: 0000000000004000 RSI: 0000200000000040 RDI: ffffffff80000800
RBP: 00007fb445691e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000280 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb445836038 R14: 00007fb445835fa0 R15: 00007ffee0b3d058
 </TASK>