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BUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show

read-write to 0xffff88810128d060 of 4 bytes by task 14253 on cpu 1:
 show_numa_info mm/vmalloc.c:4837 [inline]
 vmalloc_info_show+0x44d/0x760 mm/vmalloc.c:4919
 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230
 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299
 call_read_iter include/linux/fs.h:2104 [inline]
 io_iter_do_read io_uring/rw.c:704 [inline]
 __io_read+0x2ee/0xb90 io_uring/rw.c:827
 io_read+0x1e/0x60 io_uring/rw.c:918
 io_issue_sqe+0x153/0x600 io_uring/io_uring.c:1897
 io_wq_submit_work+0x42b/0x5a0 io_uring/io_uring.c:2006
 io_worker_handle_work+0x4a4/0xa20 io_uring/io-wq.c:596
 io_wq_worker+0x20c/0x730 io_uring/io-wq.c:649
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff88810128d060 of 4 bytes by task 14260 on cpu 0:
 show_numa_info mm/vmalloc.c:4837 [inline]
 vmalloc_info_show+0x44d/0x760 mm/vmalloc.c:4919
 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230
 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299
 call_read_iter include/linux/fs.h:2104 [inline]
 io_iter_do_read io_uring/rw.c:704 [inline]
 __io_read+0x2ee/0xb90 io_uring/rw.c:827
 io_read+0x1e/0x60 io_uring/rw.c:918
 io_issue_sqe+0x153/0x600 io_uring/io_uring.c:1897
 io_wq_submit_work+0x42b/0x5a0 io_uring/io_uring.c:2006
 io_worker_handle_work+0x4a4/0xa20 io_uring/io-wq.c:596
 io_wq_worker+0x20c/0x730 io_uring/io-wq.c:649
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x0000003c -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 14260 Comm: iou-wrk-14258 Tainted: G        W          6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show

read-write to 0xffff88810128d060 of 4 bytes by task 14253 on cpu 1:
 show_numa_info mm/vmalloc.c:4837 [inline]
 vmalloc_info_show+0x44d/0x760 mm/vmalloc.c:4919
 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230
 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299
 call_read_iter include/linux/fs.h:2104 [inline]
 io_iter_do_read io_uring/rw.c:704 [inline]
 __io_read+0x2ee/0xb90 io_uring/rw.c:827
 io_read+0x1e/0x60 io_uring/rw.c:918
 io_issue_sqe+0x153/0x600 io_uring/io_uring.c:1897
 io_wq_submit_work+0x42b/0x5a0 io_uring/io_uring.c:2006
 io_worker_handle_work+0x4a4/0xa20 io_uring/io-wq.c:596
 io_wq_worker+0x20c/0x730 io_uring/io-wq.c:649
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read to 0xffff88810128d060 of 4 bytes by task 14260 on cpu 0:
 show_numa_info mm/vmalloc.c:4839 [inline]
 vmalloc_info_show+0x528/0x760 mm/vmalloc.c:4919
 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230
 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299
 call_read_iter include/linux/fs.h:2104 [inline]
 io_iter_do_read io_uring/rw.c:704 [inline]
 __io_read+0x2ee/0xb90 io_uring/rw.c:827
 io_read+0x1e/0x60 io_uring/rw.c:918
 io_issue_sqe+0x153/0x600 io_uring/io_uring.c:1897
 io_wq_submit_work+0x42b/0x5a0 io_uring/io_uring.c:2006
 io_worker_handle_work+0x4a4/0xa20 io_uring/io-wq.c:596
 io_wq_worker+0x20c/0x730 io_uring/io-wq.c:649
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x0000009a -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 14260 Comm: iou-wrk-14258 Tainted: G        W          6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
==================================================================