RBP: 00007f85e4f03090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000015 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f85e4216038 R14: 00007f85e4215fa0 R15: 00007ffdb88c0de8 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 24254 Comm: syz.0.4380 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:bitmap_subset include/linux/bitmap.h:433 [inline] RIP: 0010:cpumask_subset include/linux/cpumask.h:836 [inline] RIP: 0010:rebuild_sched_domains_locked+0x243/0x980 kernel/cgroup/cpuset.c:965 Code: 7f 05 00 41 83 c4 01 89 de 48 83 c5 08 44 89 e7 e8 e2 78 05 00 41 39 dc 0f 84 2b 04 00 00 e8 e4 7e 05 00 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6f 06 00 00 48 8b 04 24 48 23 45 00 31 ff 44 RSP: 0018:ffffc9000de3f860 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000020 RDX: ffff88801fab3c80 RSI: ffffffff82027c5c RDI: ffffffff8e1288e8 RBP: 0000000000000000 R08: 0000000000000cc0 R09: 00000000ffffffff R10: ffffffff8e9dd793 R11: 000000000000c510 R12: 0000000000000000 R13: 00000000000f4240 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f85e4f036c0(0000) GS:ffff888124451000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000035646000 CR4: 00000000003526f0 Call Trace: rebuild_sched_domains_cpuslocked kernel/cgroup/cpuset.c:981 [inline] rebuild_sched_domains+0x21/0x40 kernel/cgroup/cpuset.c:988 sched_rt_handler+0xb5/0xe0 kernel/sched/rt.c:2911 proc_sys_call_handler+0x327/0x5a0 fs/proc/proc_sysctl.c:600 copy_splice_read+0x4ba/0xb90 fs/splice.c:362 do_splice_read fs/splice.c:980 [inline] do_splice_read+0x285/0x370 fs/splice.c:954 splice_direct_to_actor+0x2a1/0xa30 fs/splice.c:1084 do_splice_direct_actor fs/splice.c:1202 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1228 do_sendfile+0xadc/0xe20 fs/read_write.c:1372 __do_sys_sendfile64 fs/read_write.c:1433 [inline] __se_sys_sendfile64 fs/read_write.c:1419 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1419 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f85e3f9c629 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:00007f85e4f03028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f85e4215fa0 RCX: 00007f85e3f9c629 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007f85e4f03090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000015 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f85e4216038 R14: 00007f85e4215fa0 R15: 00007ffdb88c0de8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bitmap_subset include/linux/bitmap.h:433 [inline] RIP: 0010:cpumask_subset include/linux/cpumask.h:836 [inline] RIP: 0010:rebuild_sched_domains_locked+0x243/0x980 kernel/cgroup/cpuset.c:965 Code: 7f 05 00 41 83 c4 01 89 de 48 83 c5 08 44 89 e7 e8 e2 78 05 00 41 39 dc 0f 84 2b 04 00 00 e8 e4 7e 05 00 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6f 06 00 00 48 8b 04 24 48 23 45 00 31 ff 44 RSP: 0018:ffffc9000de3f860 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000020 RDX: ffff88801fab3c80 RSI: ffffffff82027c5c RDI: ffffffff8e1288e8 RBP: 0000000000000000 R08: 0000000000000cc0 R09: 00000000ffffffff R10: ffffffff8e9dd793 R11: 000000000000c510 R12: 0000000000000000 R13: 00000000000f4240 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f85e4f036c0(0000) GS:ffff888124451000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b3f92efb3 CR3: 0000000035646000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 05 00 41 83 c4 add $0xc4834100,%eax 5: 01 89 de 48 83 c5 add %ecx,-0x3a7cb722(%rcx) b: 08 44 89 e7 or %al,-0x19(%rcx,%rcx,4) f: e8 e2 78 05 00 call 0x578f6 14: 41 39 dc cmp %ebx,%r12d 17: 0f 84 2b 04 00 00 je 0x448 1d: e8 e4 7e 05 00 call 0x57f06 22: 48 89 e8 mov %rbp,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2e: 0f 85 6f 06 00 00 jne 0x6a3 34: 48 8b 04 24 mov (%rsp),%rax 38: 48 23 45 00 and 0x0(%rbp),%rax 3c: 31 ff xor %edi,%edi 3e: 44 rex.R