[ 35.491664][ T3028] 8021q: adding VLAN 0 to HW filter on device eth2 [ 35.552815][ T30] audit: type=1400 audit(1792104257.223:172): avc: denied { write } for pid=3544 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 35.588749][ T30] audit: type=1400 audit(1792104257.253:173): avc: denied { write } for pid=3555 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 35.623726][ T3028] 8021q: adding VLAN 0 to HW filter on device eth3 [ 35.673472][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 35.702790][ T30] audit: type=1400 audit(1792104257.373:174): avc: denied { write } for pid=3559 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 35.738424][ T30] audit: type=1400 audit(1792104257.403:175): avc: denied { write } for pid=3570 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 35.770417][ T3028] 8021q: adding VLAN 0 to HW filter on device eth4 [ 35.862757][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 35.902184][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 35.942773][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 35.988407][ T12] bridge_slave_1: left allmulticast mode [ 35.988430][ T12] bridge_slave_1: left promiscuous mode [ 35.988550][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.989278][ T12] bridge_slave_0: left allmulticast mode [ 35.989291][ T12] bridge_slave_0: left promiscuous mode [ 35.989409][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.058698][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 36.068552][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 36.069145][ T12] bond0 (unregistering): Released all slaves [ 36.113626][ T12] hsr_slave_0: left promiscuous mode [ 36.114008][ T12] hsr_slave_1: left promiscuous mode [ 36.114444][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 36.114461][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 36.114882][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 36.114896][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 36.117605][ T12] veth1_macvtap: left promiscuous mode [ 36.117632][ T12] veth0_macvtap: left promiscuous mode [ 36.117743][ T12] veth1_vlan: left promiscuous mode [ 36.117808][ T12] veth0_vlan: left promiscuous mode [ 36.189521][ T30] audit: type=1400 audit(1792104257.853:176): avc: denied { write } for pid=3577 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 36.209107][ T30] audit: type=1400 audit(1792104257.873:177): avc: denied { write } for pid=3588 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 36.239048][ T12] team0 (unregistering): Port device team_slave_1 removed [ 36.247168][ T12] team0 (unregistering): Port device team_slave_0 removed [ 36.269889][ T3028] 8021q: adding VLAN 0 to HW filter on device eth5 [ 36.360231][ T3028] 8021q: adding VLAN 0 to HW filter on device eth6 [ 36.447434][ T3028] 8021q: adding VLAN 0 to HW filter on device eth7 [ 36.532284][ T3028] 8021q: adding VLAN 0 to HW filter on device eth8 Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts. [+] Starting reproduction attempt for dont_mount / path_lookupat race... [+] sched_getaffinity successful: 2 CPUs available [+] mkdir /tmp/kcsan_dont_mount_repro successful [+] open /tmp/kcsan_dont_mount_repro successful (dfd=3) [+] Pre-existing target cleaned up [+] pthread_create reader_thread successful [+] Writer pinned to CPU 1 successful [+] Running race loop for 10.0 seconds... [+] Reader pinned to CPU 0 successful [ 40.695234][ T3651] ================================================================== [ 40.695276][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 40.695319][ T3651] [ 40.695326][ T3651] write to 0xffff8881076b23c0 of 4 bytes by task 3650 on cpu 1: [ 40.695345][ T3651] d_make_discardable+0x4f/0x90 [ 40.695373][ T3651] simple_unlink+0x68/0x80 [ 40.695393][ T3651] shmem_unlink+0x12d/0x140 [ 40.695419][ T3651] vfs_unlink+0x1c3/0x490 [ 40.695439][ T3651] filename_unlinkat+0x1dc/0x410 [ 40.695461][ T3651] __se_sys_unlinkat+0x80/0x140 [ 40.695483][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 40.695504][ T3651] x64_sys_call+0x21a3/0x2550 [ 40.695534][ T3651] do_syscall_64+0x112/0x360 [ 40.695562][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.695586][ T3651] [ 40.695592][ T3651] read to 0xffff8881076b23c0 of 4 bytes by task 3651 on cpu 0: [ 40.695610][ T3651] step_into_slowpath+0x133/0x600 [ 40.695639][ T3651] path_lookupat+0x2eb/0x4c0 [ 40.695667][ T3651] filename_lookup+0x18f/0x390 [ 40.695694][ T3651] do_readlinkat+0x74/0x2f0 [ 40.695724][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 40.695752][ T3651] x64_sys_call+0x10d5/0x2550 [ 40.695780][ T3651] do_syscall_64+0x112/0x360 [ 40.695807][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.695831][ T3651] [ 40.695835][ T3651] value changed: 0x08300080 -> 0x00004080 [ 40.695848][ T3651] [ 40.695852][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 40.695873][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 40.695902][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 40.695917][ T3651] ================================================================== [ 40.879324][ T3651] ================================================================== [ 40.879365][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 40.879408][ T3651] [ 40.879415][ T3651] write to 0xffff8881076b99c0 of 4 bytes by task 3650 on cpu 1: [ 40.879434][ T3651] d_make_discardable+0x4f/0x90 [ 40.879462][ T3651] simple_unlink+0x68/0x80 [ 40.879483][ T3651] shmem_unlink+0x12d/0x140 [ 40.879508][ T3651] vfs_unlink+0x1c3/0x490 [ 40.879528][ T3651] filename_unlinkat+0x1dc/0x410 [ 40.879550][ T3651] __se_sys_unlinkat+0x80/0x140 [ 40.879571][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 40.879600][ T3651] x64_sys_call+0x21a3/0x2550 [ 40.879624][ T3651] do_syscall_64+0x112/0x360 [ 40.879650][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.879674][ T3651] [ 40.879680][ T3651] read to 0xffff8881076b99c0 of 4 bytes by task 3651 on cpu 0: [ 40.879699][ T3651] step_into_slowpath+0xea/0x600 [ 40.879729][ T3651] path_lookupat+0x2eb/0x4c0 [ 40.879757][ T3651] filename_lookup+0x18f/0x390 [ 40.879785][ T3651] do_readlinkat+0x74/0x2f0 [ 40.879815][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 40.879842][ T3651] x64_sys_call+0x10d5/0x2550 [ 40.879866][ T3651] do_syscall_64+0x112/0x360 [ 40.879890][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.879914][ T3651] [ 40.879918][ T3651] value changed: 0x08300080 -> 0x00004080 [ 40.879931][ T3651] [ 40.879935][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 40.879948][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 40.879977][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 40.879992][ T3651] ================================================================== [ 41.095810][ T3651] ================================================================== [ 41.095852][ T3651] BUG: KCSAN: data-race in d_make_discardable / lookup_fast [ 41.095895][ T3651] [ 41.095902][ T3651] write to 0xffff888107753e40 of 4 bytes by task 3650 on cpu 1: [ 41.095921][ T3651] d_make_discardable+0x4f/0x90 [ 41.095949][ T3651] simple_unlink+0x68/0x80 [ 41.095968][ T3651] shmem_unlink+0x12d/0x140 [ 41.095994][ T3651] vfs_unlink+0x1c3/0x490 [ 41.096014][ T3651] filename_unlinkat+0x1dc/0x410 [ 41.096036][ T3651] __se_sys_unlinkat+0x80/0x140 [ 41.096058][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 41.096080][ T3651] x64_sys_call+0x21a3/0x2550 [ 41.096109][ T3651] do_syscall_64+0x112/0x360 [ 41.096136][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.096161][ T3651] [ 41.096167][ T3651] read to 0xffff888107753e40 of 4 bytes by task 3651 on cpu 0: [ 41.096185][ T3651] lookup_fast+0xf1/0x320 [ 41.096215][ T3651] path_lookupat+0x120/0x4c0 [ 41.096242][ T3651] filename_lookup+0x18f/0x390 [ 41.096270][ T3651] do_readlinkat+0x74/0x2f0 [ 41.096299][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 41.096327][ T3651] x64_sys_call+0x10d5/0x2550 [ 41.096355][ T3651] do_syscall_64+0x112/0x360 [ 41.096382][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.096405][ T3651] [ 41.096410][ T3651] value changed: 0x08300080 -> 0x00004080 [ 41.096422][ T3651] [ 41.096427][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 41.096440][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 41.096475][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 41.096489][ T3651] ================================================================== [ 41.297933][ T3651] ================================================================== [ 41.297973][ T3651] BUG: KCSAN: data-race in d_make_discardable / path_lookupat [ 41.298013][ T3651] [ 41.298020][ T3651] write to 0xffff8881076c1a80 of 4 bytes by task 3650 on cpu 1: [ 41.298039][ T3651] d_make_discardable+0x4f/0x90 [ 41.298067][ T3651] simple_unlink+0x68/0x80 [ 41.298088][ T3651] shmem_unlink+0x12d/0x140 [ 41.298113][ T3651] vfs_unlink+0x1c3/0x490 [ 41.298134][ T3651] filename_unlinkat+0x1dc/0x410 [ 41.298155][ T3651] __se_sys_unlinkat+0x80/0x140 [ 41.298177][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 41.298199][ T3651] x64_sys_call+0x21a3/0x2550 [ 41.298229][ T3651] do_syscall_64+0x112/0x360 [ 41.298257][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.298281][ T3651] [ 41.298287][ T3651] read to 0xffff8881076c1a80 of 4 bytes by task 3651 on cpu 0: [ 41.298306][ T3651] path_lookupat+0x19b/0x4c0 [ 41.298333][ T3651] filename_lookup+0x18f/0x390 [ 41.298368][ T3651] do_readlinkat+0x74/0x2f0 [ 41.298399][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 41.298427][ T3651] x64_sys_call+0x10d5/0x2550 [ 41.298461][ T3651] do_syscall_64+0x112/0x360 [ 41.298487][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.298511][ T3651] [ 41.298515][ T3651] value changed: 0x08300080 -> 0x00004080 [ 41.298528][ T3651] [ 41.298533][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 41.298546][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 41.298575][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 41.298590][ T3651] ================================================================== [ 41.471643][ T3651] ================================================================== [ 41.471687][ T3651] BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath [ 41.471736][ T3651] [ 41.471743][ T3651] write to 0xffff888107753b70 of 8 bytes by task 3650 on cpu 1: [ 41.471762][ T3651] dentry_unlink_inode+0x65/0x260 [ 41.471798][ T3651] d_delete+0x164/0x180 [ 41.471830][ T3651] d_delete_notify+0x32/0x100 [ 41.471851][ T3651] vfs_unlink+0x287/0x490 [ 41.471871][ T3651] filename_unlinkat+0x1dc/0x410 [ 41.471892][ T3651] __se_sys_unlinkat+0x80/0x140 [ 41.471914][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 41.471936][ T3651] x64_sys_call+0x21a3/0x2550 [ 41.471966][ T3651] do_syscall_64+0x112/0x360 [ 41.471994][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.472018][ T3651] [ 41.472024][ T3651] read to 0xffff888107753b70 of 8 bytes by task 3651 on cpu 0: [ 41.472048][ T3651] step_into_slowpath+0x127/0x600 [ 41.472077][ T3651] path_lookupat+0x2eb/0x4c0 [ 41.472105][ T3651] filename_lookup+0x18f/0x390 [ 41.472132][ T3651] do_readlinkat+0x74/0x2f0 [ 41.472168][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 41.472196][ T3651] x64_sys_call+0x10d5/0x2550 [ 41.472225][ T3651] do_syscall_64+0x112/0x360 [ 41.472251][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.472275][ T3651] [ 41.472279][ T3651] value changed: 0xffff88810bffb170 -> 0x0000000000000000 [ 41.472293][ T3651] [ 41.472297][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 41.472310][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 41.472339][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 41.472354][ T3651] ================================================================== [ 41.879670][ T3651] ================================================================== [ 41.879710][ T3651] BUG: KCSAN: data-race in d_make_discardable / do_readlinkat [ 41.879753][ T3651] [ 41.879760][ T3651] write to 0xffff888107730c00 of 4 bytes by task 3650 on cpu 1: [ 41.879778][ T3651] d_make_discardable+0x4f/0x90 [ 41.879806][ T3651] simple_unlink+0x68/0x80 [ 41.879827][ T3651] shmem_unlink+0x12d/0x140 [ 41.879852][ T3651] vfs_unlink+0x1c3/0x490 [ 41.879873][ T3651] filename_unlinkat+0x1dc/0x410 [ 41.879894][ T3651] __se_sys_unlinkat+0x80/0x140 [ 41.879916][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 41.879938][ T3651] x64_sys_call+0x21a3/0x2550 [ 41.879968][ T3651] do_syscall_64+0x112/0x360 [ 41.879997][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.880020][ T3651] [ 41.880026][ T3651] read to 0xffff888107730c00 of 4 bytes by task 3651 on cpu 0: [ 41.880044][ T3651] do_readlinkat+0xa0/0x2f0 [ 41.880074][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 41.880102][ T3651] x64_sys_call+0x10d5/0x2550 [ 41.880130][ T3651] do_syscall_64+0x112/0x360 [ 41.880156][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.880180][ T3651] [ 41.880184][ T3651] value changed: 0x08300080 -> 0x00300180 [ 41.880197][ T3651] [ 41.880201][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 41.880215][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 41.880244][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 41.880259][ T3651] ================================================================== [ 42.736599][ T3651] ================================================================== [ 42.736636][ T3651] BUG: KCSAN: data-race in dont_mount / path_lookupat [ 42.736668][ T3651] [ 42.736675][ T3651] read-write to 0xffff8881077446c0 of 4 bytes by task 3650 on cpu 1: [ 42.736694][ T3651] dont_mount+0x2a/0x40 [ 42.736714][ T3651] vfs_unlink+0x202/0x490 [ 42.736735][ T3651] filename_unlinkat+0x1dc/0x410 [ 42.736757][ T3651] __se_sys_unlinkat+0x80/0x140 [ 42.736779][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 42.736800][ T3651] x64_sys_call+0x21a3/0x2550 [ 42.736830][ T3651] do_syscall_64+0x112/0x360 [ 42.736856][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.736881][ T3651] [ 42.736887][ T3651] read to 0xffff8881077446c0 of 4 bytes by task 3651 on cpu 0: [ 42.736905][ T3651] path_lookupat+0x19b/0x4c0 [ 42.736932][ T3651] filename_lookup+0x18f/0x390 [ 42.736960][ T3651] do_readlinkat+0x74/0x2f0 [ 42.736990][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 42.737018][ T3651] x64_sys_call+0x10d5/0x2550 [ 42.737046][ T3651] do_syscall_64+0x112/0x360 [ 42.737072][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.737096][ T3651] [ 42.737100][ T3651] value changed: 0x00300080 -> 0x00004080 [ 42.737113][ T3651] [ 42.737117][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 42.737130][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 42.737159][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 42.737174][ T3651] ================================================================== [ 43.708679][ T3651] ================================================================== [ 43.708722][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 43.708764][ T3651] [ 43.708771][ T3651] write to 0xffff88810775d240 of 4 bytes by task 3650 on cpu 1: [ 43.708790][ T3651] d_make_discardable+0x4f/0x90 [ 43.708813][ T3651] simple_unlink+0x68/0x80 [ 43.708833][ T3651] shmem_unlink+0x12d/0x140 [ 43.708858][ T3651] vfs_unlink+0x1c3/0x490 [ 43.708879][ T3651] filename_unlinkat+0x1dc/0x410 [ 43.708901][ T3651] __se_sys_unlinkat+0x80/0x140 [ 43.708922][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 43.708944][ T3651] x64_sys_call+0x21a3/0x2550 [ 43.708974][ T3651] do_syscall_64+0x112/0x360 [ 43.709003][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.709027][ T3651] [ 43.709033][ T3651] read to 0xffff88810775d240 of 4 bytes by task 3651 on cpu 0: [ 43.709051][ T3651] step_into_slowpath+0x133/0x600 [ 43.709081][ T3651] path_lookupat+0x2eb/0x4c0 [ 43.709109][ T3651] filename_lookup+0x18f/0x390 [ 43.709136][ T3651] do_readlinkat+0x74/0x2f0 [ 43.709166][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 43.709194][ T3651] x64_sys_call+0x10d5/0x2550 [ 43.709222][ T3651] do_syscall_64+0x112/0x360 [ 43.709248][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.709271][ T3651] [ 43.709276][ T3651] value changed: 0x08300080 -> 0x00004080 [ 43.709288][ T3651] [ 43.709298][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 43.709311][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.709340][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.709355][ T3651] ================================================================== [ 43.924565][ T3651] ================================================================== [ 43.924607][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 43.924649][ T3651] [ 43.924656][ T3651] write to 0xffff8881076bd000 of 4 bytes by task 3650 on cpu 1: [ 43.924675][ T3651] d_make_discardable+0x4f/0x90 [ 43.924703][ T3651] simple_unlink+0x68/0x80 [ 43.924724][ T3651] shmem_unlink+0x12d/0x140 [ 43.924749][ T3651] vfs_unlink+0x1c3/0x490 [ 43.924775][ T3651] filename_unlinkat+0x1dc/0x410 [ 43.924797][ T3651] __se_sys_unlinkat+0x80/0x140 [ 43.924819][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 43.924840][ T3651] x64_sys_call+0x21a3/0x2550 [ 43.924871][ T3651] do_syscall_64+0x112/0x360 [ 43.924899][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.924923][ T3651] [ 43.924929][ T3651] read to 0xffff8881076bd000 of 4 bytes by task 3651 on cpu 0: [ 43.924947][ T3651] step_into_slowpath+0xea/0x600 [ 43.924977][ T3651] path_lookupat+0x2eb/0x4c0 [ 43.925005][ T3651] filename_lookup+0x18f/0x390 [ 43.925032][ T3651] do_readlinkat+0x74/0x2f0 [ 43.925062][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 43.925089][ T3651] x64_sys_call+0x10d5/0x2550 [ 43.925117][ T3651] do_syscall_64+0x112/0x360 [ 43.925144][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.925167][ T3651] [ 43.925172][ T3651] value changed: 0x08300080 -> 0x00004080 [ 43.925184][ T3651] [ 43.925189][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 43.925202][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.925231][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.925246][ T3651] ================================================================== [ 44.187040][ T3651] ================================================================== [ 44.187081][ T3651] BUG: KCSAN: data-race in d_make_discardable / lookup_fast [ 44.187123][ T3651] [ 44.187130][ T3651] write to 0xffff8881076aae40 of 4 bytes by task 3650 on cpu 1: [ 44.187149][ T3651] d_make_discardable+0x4f/0x90 [ 44.187178][ T3651] simple_unlink+0x68/0x80 [ 44.187198][ T3651] shmem_unlink+0x12d/0x140 [ 44.187223][ T3651] vfs_unlink+0x1c3/0x490 [ 44.187243][ T3651] filename_unlinkat+0x1dc/0x410 [ 44.187265][ T3651] __se_sys_unlinkat+0x80/0x140 [ 44.187286][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 44.187308][ T3651] x64_sys_call+0x21a3/0x2550 [ 44.187338][ T3651] do_syscall_64+0x112/0x360 [ 44.187366][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.187390][ T3651] [ 44.187396][ T3651] read to 0xffff8881076aae40 of 4 bytes by task 3651 on cpu 0: [ 44.187414][ T3651] lookup_fast+0xf1/0x320 [ 44.187443][ T3651] path_lookupat+0x120/0x4c0 [ 44.187471][ T3651] filename_lookup+0x18f/0x390 [ 44.187498][ T3651] do_readlinkat+0x74/0x2f0 [ 44.187528][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 44.187556][ T3651] x64_sys_call+0x10d5/0x2550 [ 44.187584][ T3651] do_syscall_64+0x112/0x360 [ 44.187610][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.187634][ T3651] [ 44.187638][ T3651] value changed: 0x08300080 -> 0x00004080 [ 44.187651][ T3651] [ 44.187655][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 44.187668][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 44.187697][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 44.187711][ T3651] ================================================================== [ 44.491484][ T3651] ================================================================== [ 44.491524][ T3651] BUG: KCSAN: data-race in d_make_discardable / path_lookupat [ 44.491564][ T3651] [ 44.491571][ T3651] write to 0xffff888107742300 of 4 bytes by task 3650 on cpu 1: [ 44.491590][ T3651] d_make_discardable+0x4f/0x90 [ 44.491618][ T3651] simple_unlink+0x68/0x80 [ 44.491639][ T3651] shmem_unlink+0x12d/0x140 [ 44.491664][ T3651] vfs_unlink+0x1c3/0x490 [ 44.491685][ T3651] filename_unlinkat+0x1dc/0x410 [ 44.491712][ T3651] __se_sys_unlinkat+0x80/0x140 [ 44.491734][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 44.491755][ T3651] x64_sys_call+0x21a3/0x2550 [ 44.491784][ T3651] do_syscall_64+0x112/0x360 [ 44.491812][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.491835][ T3651] [ 44.491841][ T3651] read to 0xffff888107742300 of 4 bytes by task 3651 on cpu 0: [ 44.491860][ T3651] path_lookupat+0x19b/0x4c0 [ 44.491887][ T3651] filename_lookup+0x18f/0x390 [ 44.491914][ T3651] do_readlinkat+0x74/0x2f0 [ 44.491944][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 44.491972][ T3651] x64_sys_call+0x10d5/0x2550 [ 44.492000][ T3651] do_syscall_64+0x112/0x360 [ 44.492026][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.492050][ T3651] [ 44.492054][ T3651] value changed: 0x08300080 -> 0x00004080 [ 44.492067][ T3651] [ 44.492071][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 44.492085][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 44.492114][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 44.492128][ T3651] ================================================================== [ 44.499244][ T3651] ================================================================== [ 44.499283][ T3651] BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath [ 44.499332][ T3651] [ 44.499338][ T3651] write to 0xffff888107743270 of 8 bytes by task 3650 on cpu 1: [ 44.499356][ T3651] dentry_unlink_inode+0x65/0x260 [ 44.499391][ T3651] d_delete+0x164/0x180 [ 44.499423][ T3651] d_delete_notify+0x32/0x100 [ 44.499444][ T3651] vfs_unlink+0x287/0x490 [ 44.499464][ T3651] filename_unlinkat+0x1dc/0x410 [ 44.499486][ T3651] __se_sys_unlinkat+0x80/0x140 [ 44.499507][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 44.499529][ T3651] x64_sys_call+0x21a3/0x2550 [ 44.499558][ T3651] do_syscall_64+0x112/0x360 [ 44.499586][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.499608][ T3651] [ 44.499614][ T3651] read to 0xffff888107743270 of 8 bytes by task 3651 on cpu 0: [ 44.499629][ T3651] step_into_slowpath+0x127/0x600 [ 44.499656][ T3651] path_lookupat+0x2eb/0x4c0 [ 44.499683][ T3651] filename_lookup+0x18f/0x390 [ 44.499717][ T3651] do_readlinkat+0x74/0x2f0 [ 44.499747][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 44.499775][ T3651] x64_sys_call+0x10d5/0x2550 [ 44.499804][ T3651] do_syscall_64+0x112/0x360 [ 44.499830][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.499854][ T3651] [ 44.499858][ T3651] value changed: 0xffff88810ae42690 -> 0x0000000000000000 [ 44.499872][ T3651] [ 44.499876][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 44.499889][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 44.499917][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 44.499931][ T3651] ================================================================== [ 45.028620][ T3651] ================================================================== [ 45.028663][ T3651] BUG: KCSAN: data-race in d_make_discardable / do_readlinkat [ 45.028703][ T3651] [ 45.028710][ T3651] write to 0xffff888107746480 of 4 bytes by task 3650 on cpu 1: [ 45.028729][ T3651] d_make_discardable+0x4f/0x90 [ 45.028756][ T3651] simple_unlink+0x68/0x80 [ 45.028777][ T3651] shmem_unlink+0x12d/0x140 [ 45.028802][ T3651] vfs_unlink+0x1c3/0x490 [ 45.028823][ T3651] filename_unlinkat+0x1dc/0x410 [ 45.028845][ T3651] __se_sys_unlinkat+0x80/0x140 [ 45.028867][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 45.028893][ T3651] x64_sys_call+0x21a3/0x2550 [ 45.028923][ T3651] do_syscall_64+0x112/0x360 [ 45.028951][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.028975][ T3651] [ 45.028981][ T3651] read to 0xffff888107746480 of 4 bytes by task 3651 on cpu 0: [ 45.028999][ T3651] do_readlinkat+0xa0/0x2f0 [ 45.029029][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 45.029057][ T3651] x64_sys_call+0x10d5/0x2550 [ 45.029085][ T3651] do_syscall_64+0x112/0x360 [ 45.029111][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.029135][ T3651] [ 45.029139][ T3651] value changed: 0x08300080 -> 0x00300180 [ 45.029152][ T3651] [ 45.029156][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 45.029170][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 45.029199][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 45.029214][ T3651] ================================================================== [ 45.511341][ T3650] ================================================================== [ 45.511377][ T3650] BUG: KCSAN: data-race in dentry_kill / fast_dput [ 45.511407][ T3650] [ 45.511414][ T3650] write to 0xffff8881076b26d0 of 8 bytes by task 3651 on cpu 0: [ 45.511433][ T3650] dentry_kill+0x139/0x500 [ 45.511454][ T3650] finish_dput+0x16/0x1d0 [ 45.511480][ T3650] dput+0x48/0x50 [ 45.511504][ T3650] step_into_slowpath+0x430/0x600 [ 45.511534][ T3650] path_lookupat+0x2eb/0x4c0 [ 45.511562][ T3650] filename_lookup+0x329/0x390 [ 45.511589][ T3650] do_readlinkat+0x74/0x2f0 [ 45.511618][ T3650] __x64_sys_readlinkat+0x51/0x60 [ 45.511647][ T3650] x64_sys_call+0x10d5/0x2550 [ 45.511681][ T3650] do_syscall_64+0x112/0x360 [ 45.511709][ T3650] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.511734][ T3650] [ 45.511740][ T3650] read to 0xffff8881076b26d0 of 8 bytes by task 3650 on cpu 1: [ 45.511758][ T3650] fast_dput+0x64/0x300 [ 45.511783][ T3650] dput+0x1f/0x50 [ 45.511807][ T3650] filename_unlinkat+0x217/0x410 [ 45.511829][ T3650] __se_sys_unlinkat+0x80/0x140 [ 45.511851][ T3650] __x64_sys_unlinkat+0x43/0x50 [ 45.511872][ T3650] x64_sys_call+0x21a3/0x2550 [ 45.511901][ T3650] do_syscall_64+0x112/0x360 [ 45.511927][ T3650] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.511950][ T3650] [ 45.511954][ T3650] value changed: 0xffff888237466d90 -> 0x0000000000000000 [ 45.511968][ T3650] [ 45.511972][ T3650] Reported by Kernel Concurrency Sanitizer on: [ 45.511985][ T3650] CPU: 1 UID: 0 PID: 3650 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 45.512014][ T3650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 45.512029][ T3650] ================================================================== [ 46.361875][ T30] kauditd_printk_skb: 6 callbacks suppressed [ 46.361894][ T30] audit: type=1400 audit(1792104268.033:184): avc: denied { write } for pid=3660 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.419651][ T30] audit: type=1400 audit(1792104268.083:185): avc: denied { write } for pid=3671 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.580200][ T30] audit: type=1400 audit(1792104268.243:186): avc: denied { write } for pid=3674 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.634368][ T30] audit: type=1400 audit(1792104268.303:187): avc: denied { write } for pid=3685 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.832219][ T30] audit: type=1400 audit(1792104268.503:188): avc: denied { write } for pid=3688 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.892799][ T30] audit: type=1400 audit(1792104268.563:189): avc: denied { write } for pid=3699 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 46.942898][ T3651] ================================================================== [ 46.942939][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 46.942982][ T3651] [ 46.942989][ T3651] write to 0xffff888107767240 of 4 bytes by task 3650 on cpu 1: [ 46.943008][ T3651] d_make_discardable+0x4f/0x90 [ 46.943036][ T3651] simple_unlink+0x68/0x80 [ 46.943057][ T3651] shmem_unlink+0x12d/0x140 [ 46.943082][ T3651] vfs_unlink+0x1c3/0x490 [ 46.943102][ T3651] filename_unlinkat+0x1dc/0x410 [ 46.943124][ T3651] __se_sys_unlinkat+0x80/0x140 [ 46.943146][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 46.943167][ T3651] x64_sys_call+0x21a3/0x2550 [ 46.943197][ T3651] do_syscall_64+0x112/0x360 [ 46.943225][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.943249][ T3651] [ 46.943255][ T3651] read to 0xffff888107767240 of 4 bytes by task 3651 on cpu 0: [ 46.943273][ T3651] step_into_slowpath+0xea/0x600 [ 46.943303][ T3651] path_lookupat+0x2eb/0x4c0 [ 46.943330][ T3651] filename_lookup+0x18f/0x390 [ 46.943357][ T3651] do_readlinkat+0x74/0x2f0 [ 46.943387][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 46.943415][ T3651] x64_sys_call+0x10d5/0x2550 [ 46.943443][ T3651] do_syscall_64+0x112/0x360 [ 46.943469][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.943493][ T3651] [ 46.943497][ T3651] value changed: 0x08300080 -> 0x00004080 [ 46.943510][ T3651] [ 46.943514][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 46.943528][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 46.943557][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 46.943572][ T3651] ================================================================== [ 47.178795][ T30] audit: type=1400 audit(1792104268.843:190): avc: denied { write } for pid=3702 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 47.229075][ T30] audit: type=1400 audit(1792104268.893:191): avc: denied { write } for pid=3713 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 47.345915][ T3651] ================================================================== [ 47.345957][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 47.346000][ T3651] [ 47.346007][ T3651] write to 0xffff888107759000 of 4 bytes by task 3650 on cpu 1: [ 47.346026][ T3651] d_make_discardable+0x4f/0x90 [ 47.346054][ T3651] simple_unlink+0x68/0x80 [ 47.346075][ T3651] shmem_unlink+0x12d/0x140 [ 47.346100][ T3651] vfs_unlink+0x1c3/0x490 [ 47.346121][ T3651] filename_unlinkat+0x1dc/0x410 [ 47.346142][ T3651] __se_sys_unlinkat+0x80/0x140 [ 47.346164][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 47.346186][ T3651] x64_sys_call+0x21a3/0x2550 [ 47.346215][ T3651] do_syscall_64+0x112/0x360 [ 47.346243][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.346267][ T3651] [ 47.346273][ T3651] read to 0xffff888107759000 of 4 bytes by task 3651 on cpu 0: [ 47.346291][ T3651] step_into_slowpath+0x133/0x600 [ 47.346320][ T3651] path_lookupat+0x2eb/0x4c0 [ 47.346345][ T3651] filename_lookup+0x18f/0x390 [ 47.346369][ T3651] do_readlinkat+0x74/0x2f0 [ 47.346397][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 47.346422][ T3651] x64_sys_call+0x10d5/0x2550 [ 47.346448][ T3651] do_syscall_64+0x112/0x360 [ 47.346471][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.346490][ T3651] [ 47.346494][ T3651] value changed: 0x08300080 -> 0x00004080 [ 47.346504][ T3651] [ 47.346507][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 47.346519][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 47.346549][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 47.346562][ T3651] ================================================================== [ 47.348152][ T3651] ================================================================== [ 47.348186][ T3651] BUG: KCSAN: data-race in d_make_discardable / lookup_fast [ 47.348227][ T3651] [ 47.348233][ T3651] write to 0xffff88810775da80 of 4 bytes by task 3650 on cpu 1: [ 47.348251][ T3651] d_make_discardable+0x4f/0x90 [ 47.348278][ T3651] simple_unlink+0x68/0x80 [ 47.348298][ T3651] shmem_unlink+0x12d/0x140 [ 47.348323][ T3651] vfs_unlink+0x1c3/0x490 [ 47.348344][ T3651] filename_unlinkat+0x1dc/0x410 [ 47.348365][ T3651] __se_sys_unlinkat+0x80/0x140 [ 47.348387][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 47.348409][ T3651] x64_sys_call+0x21a3/0x2550 [ 47.348438][ T3651] do_syscall_64+0x112/0x360 [ 47.348464][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.348488][ T3651] [ 47.348494][ T3651] read to 0xffff88810775da80 of 4 bytes by task 3651 on cpu 0: [ 47.348512][ T3651] lookup_fast+0xf1/0x320 [ 47.348541][ T3651] path_lookupat+0x120/0x4c0 [ 47.348568][ T3651] filename_lookup+0x18f/0x390 [ 47.348595][ T3651] do_readlinkat+0x74/0x2f0 [ 47.348625][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 47.348653][ T3651] x64_sys_call+0x10d5/0x2550 [ 47.348681][ T3651] do_syscall_64+0x112/0x360 [ 47.348714][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.348738][ T3651] [ 47.348742][ T3651] value changed: 0x08300080 -> 0x00004080 [ 47.348755][ T3651] [ 47.348759][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 47.348771][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 47.348799][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 47.348813][ T3651] ================================================================== [ 47.401275][ T30] audit: type=1400 audit(1792104269.063:192): avc: denied { write } for pid=3716 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 47.437910][ T30] audit: type=1400 audit(1792104269.103:193): avc: denied { write } for pid=3727 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 48.001724][ T3651] ================================================================== [ 48.001768][ T3651] BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath [ 48.001826][ T3651] [ 48.001832][ T3651] write to 0xffff888107744f30 of 8 bytes by task 3650 on cpu 1: [ 48.001851][ T3651] dentry_unlink_inode+0x65/0x260 [ 48.001886][ T3651] d_delete+0x164/0x180 [ 48.001918][ T3651] d_delete_notify+0x32/0x100 [ 48.001939][ T3651] vfs_unlink+0x287/0x490 [ 48.001959][ T3651] filename_unlinkat+0x1dc/0x410 [ 48.001981][ T3651] __se_sys_unlinkat+0x80/0x140 [ 48.002008][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 48.002030][ T3651] x64_sys_call+0x21a3/0x2550 [ 48.002060][ T3651] do_syscall_64+0x112/0x360 [ 48.002088][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.002111][ T3651] [ 48.002116][ T3651] read to 0xffff888107744f30 of 8 bytes by task 3651 on cpu 0: [ 48.002132][ T3651] step_into_slowpath+0x127/0x600 [ 48.002158][ T3651] path_lookupat+0x2eb/0x4c0 [ 48.002182][ T3651] filename_lookup+0x18f/0x390 [ 48.002206][ T3651] do_readlinkat+0x74/0x2f0 [ 48.002231][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 48.002255][ T3651] x64_sys_call+0x10d5/0x2550 [ 48.002284][ T3651] do_syscall_64+0x112/0x360 [ 48.002305][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.002328][ T3651] [ 48.002331][ T3651] value changed: 0xffff888103fca948 -> 0x0000000000000000 [ 48.002345][ T3651] [ 48.002349][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 48.002362][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 48.002391][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 48.002405][ T3651] ================================================================== [ 48.365533][ T3651] ================================================================== [ 48.365574][ T3651] BUG: KCSAN: data-race in d_make_discardable / path_lookupat [ 48.365614][ T3651] [ 48.365621][ T3651] write to 0xffff8881076c1240 of 4 bytes by task 3650 on cpu 1: [ 48.365640][ T3651] d_make_discardable+0x4f/0x90 [ 48.365668][ T3651] simple_unlink+0x68/0x80 [ 48.365689][ T3651] shmem_unlink+0x12d/0x140 [ 48.365714][ T3651] vfs_unlink+0x1c3/0x490 [ 48.365735][ T3651] filename_unlinkat+0x1dc/0x410 [ 48.365757][ T3651] __se_sys_unlinkat+0x80/0x140 [ 48.365779][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 48.365801][ T3651] x64_sys_call+0x21a3/0x2550 [ 48.365831][ T3651] do_syscall_64+0x112/0x360 [ 48.365859][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.365883][ T3651] [ 48.365889][ T3651] read to 0xffff8881076c1240 of 4 bytes by task 3651 on cpu 0: [ 48.365908][ T3651] path_lookupat+0x19b/0x4c0 [ 48.365935][ T3651] filename_lookup+0x18f/0x390 [ 48.365962][ T3651] do_readlinkat+0x74/0x2f0 [ 48.365992][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 48.366026][ T3651] x64_sys_call+0x10d5/0x2550 [ 48.366054][ T3651] do_syscall_64+0x112/0x360 [ 48.366080][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.366104][ T3651] [ 48.366108][ T3651] value changed: 0x08300080 -> 0x00004080 [ 48.366121][ T3651] [ 48.366125][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 48.366138][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 48.366167][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 48.366182][ T3651] ================================================================== [ 48.894241][ T3651] ================================================================== [ 48.894284][ T3651] BUG: KCSAN: data-race in d_make_discardable / do_readlinkat [ 48.894326][ T3651] [ 48.894334][ T3651] write to 0xffff888107768cc0 of 4 bytes by task 3650 on cpu 1: [ 48.894353][ T3651] d_make_discardable+0x4f/0x90 [ 48.894381][ T3651] simple_unlink+0x68/0x80 [ 48.894401][ T3651] shmem_unlink+0x12d/0x140 [ 48.894431][ T3651] vfs_unlink+0x1c3/0x490 [ 48.894452][ T3651] filename_unlinkat+0x1dc/0x410 [ 48.894474][ T3651] __se_sys_unlinkat+0x80/0x140 [ 48.894496][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 48.894518][ T3651] x64_sys_call+0x21a3/0x2550 [ 48.894547][ T3651] do_syscall_64+0x112/0x360 [ 48.894576][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.894599][ T3651] [ 48.894605][ T3651] read to 0xffff888107768cc0 of 4 bytes by task 3651 on cpu 0: [ 48.894623][ T3651] do_readlinkat+0xa0/0x2f0 [ 48.894653][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 48.894682][ T3651] x64_sys_call+0x10d5/0x2550 [ 48.894710][ T3651] do_syscall_64+0x112/0x360 [ 48.894736][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.894759][ T3651] [ 48.894764][ T3651] value changed: 0x08300080 -> 0x00300180 [ 48.894776][ T3651] [ 48.894781][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 48.894794][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 48.894823][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 48.894838][ T3651] ================================================================== [ 49.337785][ T3651] ================================================================== [ 49.337823][ T3651] BUG: KCSAN: data-race in dont_mount / step_into_slowpath [ 49.337856][ T3651] [ 49.337863][ T3651] read-write to 0xffff8881076ae540 of 4 bytes by task 3650 on cpu 1: [ 49.337882][ T3651] dont_mount+0x2a/0x40 [ 49.337902][ T3651] vfs_unlink+0x202/0x490 [ 49.337923][ T3651] filename_unlinkat+0x1dc/0x410 [ 49.337944][ T3651] __se_sys_unlinkat+0x80/0x140 [ 49.337966][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 49.337987][ T3651] x64_sys_call+0x21a3/0x2550 [ 49.338017][ T3651] do_syscall_64+0x112/0x360 [ 49.338045][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.338069][ T3651] [ 49.338075][ T3651] read to 0xffff8881076ae540 of 4 bytes by task 3651 on cpu 0: [ 49.338099][ T3651] step_into_slowpath+0x133/0x600 [ 49.338130][ T3651] path_lookupat+0x2eb/0x4c0 [ 49.338158][ T3651] filename_lookup+0x18f/0x390 [ 49.338185][ T3651] do_readlinkat+0x74/0x2f0 [ 49.338215][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 49.338243][ T3651] x64_sys_call+0x10d5/0x2550 [ 49.338272][ T3651] do_syscall_64+0x112/0x360 [ 49.338298][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.338322][ T3651] [ 49.338326][ T3651] value changed: 0x00300080 -> 0x00004080 [ 49.338339][ T3651] [ 49.338343][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 49.338357][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 49.338386][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 49.338401][ T3651] ================================================================== [ 49.966019][ T3651] ================================================================== [ 49.966061][ T3651] BUG: KCSAN: data-race in d_make_discardable / step_into_slowpath [ 49.966103][ T3651] [ 49.966111][ T3651] write to 0xffff888107745e40 of 4 bytes by task 3650 on cpu 1: [ 49.966130][ T3651] d_make_discardable+0x4f/0x90 [ 49.966158][ T3651] simple_unlink+0x68/0x80 [ 49.966179][ T3651] shmem_unlink+0x12d/0x140 [ 49.966204][ T3651] vfs_unlink+0x1c3/0x490 [ 49.966225][ T3651] filename_unlinkat+0x1dc/0x410 [ 49.966246][ T3651] __se_sys_unlinkat+0x80/0x140 [ 49.966269][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 49.966290][ T3651] x64_sys_call+0x21a3/0x2550 [ 49.966320][ T3651] do_syscall_64+0x112/0x360 [ 49.966349][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.966380][ T3651] [ 49.966387][ T3651] read to 0xffff888107745e40 of 4 bytes by task 3651 on cpu 0: [ 49.966405][ T3651] step_into_slowpath+0xea/0x600 [ 49.966434][ T3651] path_lookupat+0x2eb/0x4c0 [ 49.966462][ T3651] filename_lookup+0x18f/0x390 [ 49.966489][ T3651] do_readlinkat+0x74/0x2f0 [ 49.966520][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 49.966548][ T3651] x64_sys_call+0x10d5/0x2550 [ 49.966580][ T3651] do_syscall_64+0x112/0x360 [ 49.966606][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.966630][ T3651] [ 49.966634][ T3651] value changed: 0x08300080 -> 0x00004080 [ 49.966651][ T3651] [ 49.966655][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 49.966669][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 49.966698][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 49.966713][ T3651] ================================================================== [ 50.402196][ T3651] ================================================================== [ 50.402239][ T3651] BUG: KCSAN: data-race in d_delete / step_into_slowpath [ 50.402286][ T3651] [ 50.402293][ T3651] read-write to 0xffff888107762c00 of 4 bytes by task 3650 on cpu 1: [ 50.402313][ T3651] d_delete+0x15a/0x180 [ 50.402346][ T3651] d_delete_notify+0x32/0x100 [ 50.402366][ T3651] vfs_unlink+0x287/0x490 [ 50.402393][ T3651] filename_unlinkat+0x1dc/0x410 [ 50.402414][ T3651] __se_sys_unlinkat+0x80/0x140 [ 50.402436][ T3651] __x64_sys_unlinkat+0x43/0x50 [ 50.402458][ T3651] x64_sys_call+0x21a3/0x2550 [ 50.402488][ T3651] do_syscall_64+0x112/0x360 [ 50.402516][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 50.402540][ T3651] [ 50.402546][ T3651] read to 0xffff888107762c00 of 4 bytes by task 3651 on cpu 0: [ 50.402564][ T3651] step_into_slowpath+0xea/0x600 [ 50.402593][ T3651] path_lookupat+0x2eb/0x4c0 [ 50.402621][ T3651] filename_lookup+0x18f/0x390 [ 50.402648][ T3651] do_readlinkat+0x74/0x2f0 [ 50.402678][ T3651] __x64_sys_readlinkat+0x51/0x60 [ 50.402706][ T3651] x64_sys_call+0x10d5/0x2550 [ 50.402735][ T3651] do_syscall_64+0x112/0x360 [ 50.402761][ T3651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 50.402784][ T3651] [ 50.402789][ T3651] value changed: 0x00300180 -> 0x00004080 [ 50.402821][ T3651] [ 50.402836][ T3651] Reported by Kernel Concurrency Sanitizer on: [ 50.402850][ T3651] CPU: 0 UID: 0 PID: 3651 Comm: syz-executor137 Not tainted syzkaller #0 PREEMPT(lazy) [ 50.402879][ T3651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 50.402900][ T3651] ================================================================== [+] Race loop finished successfully: 52467 iterations completed [+] pthread_join successful [+] Final unlinkat successful [+] close dfd successful [+] rmdir /tmp/kcsan_dont_mount_repro successful [+] Reproducer finished cleanly