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Tue, 17 Dec 2024 16:48:19 -0800 (PST) Date: Tue, 17 Dec 2024 16:48:19 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67621bd3.050a0220.29fcd0.007f.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in bitmap_parselist_user From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 243f750a2df0 Merge tag 'gpio-fixes-for-v6.13-rc3' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1069c730580000 kernel config: https://syzkaller.appspot.com/x/.config?x=99a5586995ec03b2 dashboard link: https://syzkaller.appspot.com/bug?extid=7e12e97b36154c54414b compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1469c730580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15165cdf980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/939c742e99e7/disk-243f750a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/76db565b11d6/vmlinux-243f750a.xz kernel image: https://storage.googleapis.com/syzbot-assets/822230eb0753/bzImage-243f750a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7e12e97b36154c54414b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8721 at mm/page_alloc.c:4727 __alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4727 Modules linked in: CPU: 0 UID: 0 PID: 8721 Comm: syz-executor119 Not tainted 6.13.0-rc2-syzkaller-00192-g243f750a2df0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4727 Code: 24 2c 00 00 00 00 89 cd 0f 84 8b f9 ff ff 8b 34 24 48 89 da 8b 7c 24 08 e8 0e b3 fe ff e9 69 f9 ff ff c6 05 21 48 16 0e 01 90 <0f> 0b 90 31 db e9 9f f3 ff ff 89 14 24 e8 9f a3 0c 00 8b 14 24 e9 RSP: 0018:ffffc9000ca77918 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000013 RDI: 0000000000040cc0 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000013 R13: 0000000000040cc0 R14: 1ffff9200194ef37 R15: 00000000ffffffff FS: 00007ff2e45b86c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 0000000012b8c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] ___kmalloc_large_node+0x84/0x1b0 mm/slub.c:4243 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:4270 __do_kmalloc_node mm/slub.c:4286 [inline] __kmalloc_node_track_caller_noprof.cold+0x5/0x5f mm/slub.c:4317 memdup_user_nul+0x2b/0x110 mm/util.c:305 bitmap_parselist_user+0x24/0x90 lib/bitmap-str.c:422 cpumask_parselist_user include/linux/cpumask.h:890 [inline] write_irq_affinity kernel/irq/proc.c:149 [inline] irq_affinity_list_proc_write+0x148/0x260 kernel/irq/proc.c:186 pde_write fs/proc/inode.c:330 [inline] proc_reg_write+0x23d/0x330 fs/proc/inode.c:342 vfs_write+0x24c/0x1150 fs/read_write.c:677 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff2e4623399 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 1a 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff2e45b8238 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff2e46ae3f8 RCX: 00007ff2e4623399 RDX: 00000000fffffdef RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ff2e46ae3f0 R08: 00007ff2e45b86c0 R09: 00007ff2e45b86c0 R10: 00007ff2e45b86c0 R11: 0000000000000246 R12: 00000000fffffdef R13: 000000000000006e R14: 00007ffe203e7c30 R15: 00007ffe203e7d18 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup