Miquel Sabaté Solà f157dd6613 btrfs: fix NULL dereference on root when tracing inode eviction ... When evicting an inode the first thing we do is to setup tracing for it, which implies fetching the root's id. But in btrfs_evict_inode() the root might be NULL, as implied in the next check that we do in btrfs_evict_inode(). Hence, we either should set the ->root_objectid to 0 in case the root is NULL, or we move tracing setup after checking that the root is not NULL. Setting the rootid to 0 at least gives us the possibility to trace this call even in the case when the root is NULL, so that's the solution taken here. Fixes: 1abe9b8a13 ("Btrfs: add initial tracepoint support for btrfs") Reported-by: syzbot+d991fea1b4b23b1f6bf8@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=d991fea1b4b23b1f6bf8 Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2025-12-16 22:53:14 +01:00
..
9p.h	9p: prevent read overrun in protocol dump tracepoint	2023-12-05 21:18:44 +09:00
afs.h	afs: Add support for RENAME_NOREPLACE and RENAME_EXCHANGE	2025-09-25 09:19:07 +02:00
alarmtimer.h	alarmtimer: Hide alarmtimer_suspend event when RTC_CLASS is not configured	2025-07-21 16:40:56 -04:00
amdxdna.h	accel/amdxdna: Add command execution	2024-11-22 11:43:27 -07:00
asoc.h	ALSA: trace: use snd_pcm_direction_name()	2024-08-01 12:50:03 +02:00
avc.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
bcache.h	…
block.h	block: fix blk_zone_append_update_request_bio() kernel-doc	2025-07-16 10:02:18 -06:00
bpf_test_run.h	bpf: add bpf_modify_return_test_tp() kfunc triggering tracepoint	2024-03-28 18:31:40 -07:00
bridge.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
btrfs.h	btrfs: fix NULL dereference on root when tracing inode eviction	2025-12-16 22:53:14 +01:00
cachefiles.h	cachefiles: Add auxiliary data trace	2024-12-20 22:34:05 +01:00
capability.h	security: add trace event for cap_capable	2024-12-04 20:59:21 -06:00
cgroup.h	cgroup: remove per-cpu per-subsystem locks	2025-06-17 10:01:18 -10:00
clk.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
cma.h	mm/cma: add 'available count' and 'total count' to trace_cma_alloc_start	2025-09-13 16:55:15 -07:00
compaction.h	mm: compaction: update the cc->nr_migratepages when allocating or freeing the freepages	2024-02-22 10:24:50 -08:00
context_tracking.h	…
cpuhp.h	…
csd.h	…
damon.h	mm/damon: add trace event for effective size quota	2025-07-13 16:38:33 -07:00
devfreq.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
devlink.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
dlm.h	dlm: remove lkb from callback tracepoints	2024-04-01 13:31:12 -05:00
dma.h	dma-mapping: fix direction in dma_alloc direction traces	2025-10-03 08:45:09 +02:00
dma_fence.h	dma-fence: Add safe access helpers and document the rules	2025-06-13 08:26:49 +01:00
erofs.h	erofs: remove unused trace event erofs_destroy_inode	2025-06-18 13:41:16 +08:00
error_report.h	…
exceptions.h	x86/tracing, x86/mm: Move page fault tracepoints to generic	2025-05-16 10:13:59 +02:00
ext4.h	Major ext4 changes for 6.17:	2025-07-31 10:02:44 -07:00
f2fs.h	f2fs: remove wbc->for_reclaim handling	2025-05-08 15:22:45 +00:00
fib.h	ipv4: Convert ->flowi4_tos to dscp_t.	2025-08-26 17:34:31 -07:00
fib6.h	tracing: ipv6: Add flow label to fib6_table_lookup tracepoint	2024-12-19 16:02:22 +01:00
filelock.h	vfs-6.18-rc1.inode	2025-09-29 09:42:30 -07:00
filemap.h	filemap: add trace events for get_pages, map_pages, and fault	2024-09-01 20:26:10 -07:00
firewire.h	firewire: core: rename cause flag of tracepoints event	2024-09-12 22:30:38 +09:00
firewire_ohci.h	firewire: ohci: add tracepoints event for data of Self-ID DMA	2024-07-04 09:07:14 +09:00
fs_dax.h	mm: update core kernel code to use vm_flags_t consistently	2025-07-09 22:42:13 -07:00
fscache.h	cachefiles: fix slab-use-after-free in fscache_withdraw_volume()	2024-07-03 10:36:14 +02:00
fsi.h	…
fsi_master_aspeed.h	…
fsi_master_ast_cf.h	…
fsi_master_gpio.h	…
fsi_master_i2cr.h	…
gpio.h	…
gpu_mem.h	…
habanalabs.h	accel/habanalabs: fix typo in trace output (cms -> cmd)	2025-09-25 09:09:28 +03:00
handshake.h	…
host1x.h	…
huge_memory.h	mm: drop all references of writable and SCAN_PAGE_RO	2025-09-21 14:22:40 -07:00
hugetlbfs.h	hugetlb: fix NULL pointer dereference in trace_hugetlbfs_alloc_inode	2025-01-12 19:03:36 -08:00
hw_pressure.h	sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure()	2024-04-24 12:08:01 +02:00
hwmon.h	hwmon: Introduce 64-bit energy attribute support	2025-09-07 16:33:48 -07:00
i2c.h	…
i2c_slave.h	…
ib_mad.h	…
ib_umad.h	…
icmp.h	net/ipv4: add tracepoint for icmp_send	2024-05-08 10:39:26 +01:00
initcall.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
intel-sst.h	…
intel_ifs.h	trace: platform/x86/intel/ifs: Add SBAF trace support	2024-08-12 16:36:11 +02:00
intel_ish.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
io_uring.h	io_uring/trace: support completion tracing of mixed 32b CQEs	2025-08-24 11:41:13 -06:00
iocost.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
iommu.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
ipi.h	tracing: arm: arm64: Hide trace events ipi_raise, ipi_entry and ipi_exit	2025-07-23 14:58:55 -04:00
irq.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
irq_matrix.h	genirq/matrix: Remove unused irq_matrix_alloc_reserved tracepoint	2025-06-02 13:12:26 -04:00
iscsi.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
jbd2.h	…
kmem.h	kmem/tracing: add kmem name to kmem_cache_alloc tracepoint	2025-09-13 16:55:18 -07:00
ksm.h	mm/ksm: add tracepoint for ksm advisor	2023-12-29 11:58:27 -08:00
kvm.h	LoongArch: KVM: Move kvm_iocsr tracepoint out of generic code	2025-09-23 23:37:26 +08:00
kyber.h	…
libata.h	…
lock.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
maple_tree.h	…
mce.h	x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers	2024-10-31 10:36:07 +01:00
mctp.h	…
mdio.h	trace: events: cleanup deprecated strncpy uses	2024-04-05 22:10:25 -07:00
memcg.h	memcg: add flush tracepoint	2024-11-11 00:26:46 -08:00
migrate.h	mm/migrate: add MR_DAMON to migrate_reason	2024-07-03 19:30:12 -07:00
mlxsw.h	…
mmap.h	mm: remove unused mmap tracepoints	2025-07-09 22:41:55 -07:00
mmap_lock.h	mm: mmap_lock: optimize mmap_lock tracepoints	2025-01-13 22:40:34 -08:00
mmc.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
mmflags.h	mm: remove VM_PAT	2025-05-22 14:55:37 -07:00
module.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
mptcp.h	mptcp: sched: check both directions for backup	2024-07-30 10:27:29 +02:00
napi.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
nbd.h	nbd: Use NULL to represent a pointer	2024-05-14 07:22:35 -06:00
neigh.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
net.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
net_probe_common.h	trace: adjust TP_STORE_ADDR_PORTS_SKB() parameters	2024-04-03 19:26:14 -07:00
netfs.h	netfs: Fix race between cache write completion and ALL_QUEUED being set	2025-07-14 11:05:02 +02:00
netlink.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
nilfs2.h	nilfs2: use __field_struct() for a bitwise field	2024-05-11 15:51:43 -07:00
nmi.h	…
notifier.h	…
objagg.h	…
oom.h	mm: improve code consistency with zonelist_* helper functions	2024-09-01 20:25:55 -07:00
osnoise.h	trace/osnoise: Add trace events for samples	2025-02-26 19:44:30 -05:00
page_isolation.h	…
page_pool.h	page_pool: devmem support	2024-09-11 20:44:31 -07:00
page_ref.h	mm: introduce memdesc_flags_t	2025-09-13 16:55:07 -07:00
pagemap.h	…
percpu.h	…
power.h	PM: tracing: Hide power_domain_target event under ARCH_OMAP2PLUS	2025-07-21 16:40:57 -04:00
power_cpu_migrate.h	…
preemptirq.h	tracing: Remove definition of trace_*_rcuidle()	2024-10-08 21:17:39 -04:00
printk.h	…
pwc.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
pwm.h	pwm: Add tracing for waveform callbacks	2024-09-28 15:13:56 +02:00
qdisc.h	tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset()	2024-06-27 11:06:30 +02:00
qla.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
qrtr.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
rcu.h	RCU pull request for v6.15	2025-03-24 19:41:37 -07:00
rdma_core.h	…
readahead.h	readahead: add trace points	2025-09-21 14:22:28 -07:00
regulator.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
rpcgss.h	sunrpc: implement rfc2203 rpcsec_gss seqnum cache	2025-05-19 10:14:29 -04:00
rpcrdma.h	svcrdma: Handle device removal outside of the CM event handler	2024-09-20 19:31:03 -04:00
rpm.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
rseq.h	…
rtc.h	…
rust_sample.h	rust: samples: add tracepoint to Rust sample	2024-11-04 16:21:44 -05:00
rwmmio.h	…
rxrpc.h	rxrpc: Fix notification vs call-release vs recvmsg	2025-07-17 07:50:48 -07:00
sched.h	tracing changes for 6.17	2025-08-01 10:29:36 -07:00
sched_ext.h	sched_ext: Add trace point to track sched_ext core events	2025-03-04 08:06:17 -10:00
scmi.h	include: trace: Add tracepoint support for inflight xfer count	2025-07-03 16:18:09 +01:00
scsi.h	scsi: trace: Show rtn in string for scsi_dispatch_cmd_error()	2025-06-09 21:59:07 -04:00
sctp.h	…
signal.h	…
siox.h	…
skb.h	net: add rx_sk to trace_kfree_skb	2024-06-19 12:44:22 +01:00
smbus.h	…
sock.h	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
sof.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
sof_intel.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
spi.h	…
spmi.h	…
sunrpc.h	sunrpc: remove SVC_SYSERR	2025-07-14 12:46:48 -04:00
sunvnet.h	…
swiotlb.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
syscalls.h	tracing: Declare system call tracepoints with TRACE_EVENT_SYSCALL	2024-10-09 17:05:54 -04:00
target.h	scsi: usb: Rename the RESERVE and RELEASE constants	2025-02-12 22:20:55 -05:00
task.h	copy_process: pass clone_flags as u64 across calltree	2025-09-01 15:31:34 +02:00
tcp.h	trace: tcp: add three metrics to trace_tcp_rcvbuf_grow()	2025-10-29 17:30:18 -07:00
tegra_apb_dma.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
thp.h	powerpc/thp: tracing: Hide hugepage events under CONFIG_PPC_BOOK3S_64	2025-07-25 08:58:07 -04:00
timer.h	tracing/timers: Rename the hrtimer_init event to hrtimer_setup	2025-04-05 10:30:17 +02:00
timer_migration.h	timers/migration: Rename childmask by groupmask to make naming more obvious	2024-07-22 18:03:34 +02:00
timestamp.h	fs: tracepoints around multigrain timestamp events	2024-10-10 10:20:52 +02:00
tlb.h	…
tsm_mr.h	tsm-mr: Add TVM Measurement Register support	2025-05-08 19:17:33 -07:00
udp.h	trace: adjust TP_STORE_ADDR_PORTS_SKB() parameters	2024-04-03 19:26:14 -07:00
v4l2.h	…
vb2.h	…
vmalloc.h	…
vmscan.h	vmscan: add a vmscan event for reclaim_pages	2024-11-06 20:11:13 -08:00
vsock_virtio_transport_common.h	…
watchdog.h	…
wbt.h	…
workqueue.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
writeback.h	writeback: Add tracepoint to track pending inode switches	2025-09-19 13:11:06 +02:00
xdp.h	xdp: tracing: Hide some xdp events under CONFIG_BPF_SYSCALL	2025-06-12 19:36:53 -07:00
xen.h	…