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================================================================== BUG: KCSAN: data-race in generic_fillattr / inode_add_bytes read-write to 0xffff888143ade9b8 of 8 bytes by task 10731 on cpu 1: __inode_add_bytes fs/stat.c:891 [inline] inode_add_bytes+0x45/0xd0 fs/stat.c:904 __dquot_alloc_space+0x181/0x8a0 fs/quota/dquot.c:1695 dquot_alloc_space_nodirty include/linux/quotaops.h:299 [inline] dquot_alloc_block_nodirty include/linux/quotaops.h:326 [inline] shmem_inode_acct_blocks+0x124/0x230 mm/shmem.c:232 shmem_alloc_and_add_folio mm/shmem.c:1814 [inline] shmem_get_folio_gfp+0x5e2/0xd80 mm/shmem.c:2188 shmem_get_folio mm/shmem.c:2293 [inline] shmem_write_begin+0xa0/0x1c0 mm/shmem.c:2898 generic_perform_write+0x1b4/0x580 mm/filemap.c:4019 shmem_file_write_iter+0xc8/0xf0 mm/shmem.c:3074 __kernel_write_iter+0x24f/0x4e0 fs/read_write.c:523 dump_emit_page fs/coredump.c:893 [inline] dump_user_range+0x3a7/0x550 fs/coredump.c:954 elf_core_dump+0x1aeb/0x1c30 fs/binfmt_elf.c:2116 do_coredump+0xfa7/0x1810 fs/coredump.c:767 get_signal+0xdc1/0x1080 kernel/signal.c:2902 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x9a/0x130 kernel/entry/common.c:231 irqentry_exit+0x12/0x50 kernel/entry/common.c:334 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffff888143ade9b8 of 8 bytes by task 7723 on cpu 0: generic_fillattr+0x22d/0x2f0 fs/stat.c:64 shmem_getattr+0x17b/0x200 mm/shmem.c:1157 vfs_getattr_nosec fs/stat.c:166 [inline] vfs_getattr+0x19b/0x1e0 fs/stat.c:207 vfs_statx_path fs/stat.c:251 [inline] vfs_statx+0x134/0x2f0 fs/stat.c:315 vfs_fstatat+0xec/0x110 fs/stat.c:341 __do_sys_newfstatat fs/stat.c:505 [inline] __se_sys_newfstatat+0x58/0x260 fs/stat.c:499 __x64_sys_newfstatat+0x55/0x70 fs/stat.c:499 x64_sys_call+0x141f/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:263 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000000000008468 -> 0x0000000000008470 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 7723 Comm: syz-executor Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/31 03:25 | upstream | 20371ba12063 | 1eda0d14 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/08/26 20:20 | upstream | 5be63fc19fca | 9aee4e0b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/08/19 22:28 | upstream | 47ac09b91bef | 9f0ab3fb | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/08/16 07:16 | upstream | d7a5aa4b3c00 | e4bacdaf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/08/15 07:27 | upstream | d07b43284ab3 | e4bacdaf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/08/06 13:21 | upstream | b446a2dae984 | e1bdb00a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/07/27 17:28 | upstream | 3a7e02c040b1 | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/07/27 04:13 | upstream | 2f8c4f506285 | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes | ||
2024/07/10 12:19 | upstream | 34afb82a3c67 | bc144f9a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in generic_fillattr / inode_add_bytes |