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mirror_ubuntu-kernels/include/trace/events
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Steven Rostedt (Google) 820b8963ad net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer 
The trace event sock_exceed_buf_limit saves the prot->sysctl_mem pointer
and then dereferences it in the TP_printk() portion. This is unsafe as the
TP_printk() portion is executed at the time the buffer is read. That is,
it can be seconds, minutes, days, months, even years later. If the proto
is freed, then this dereference will can also lead to a kernel crash.

Instead, save the sysctl_mem array into the ring buffer and have the
TP_printk() reference that instead. This is the proper and safe way to
read pointers in trace events.

Link: https://lore.kernel.org/all/20220706052130.16368-12-kuniyu@amazon.com/

Cc: stable@vger.kernel.org
Fixes: 3847ce32ae ("core: add tracepoints for queueing skb to rcvbuf")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-08 12:06:17 +01:00
..
9p.h
afs.h netfs, 9p, afs, ceph: Use folios 2021-11-10 21:16:56 +00:00
alarmtimer.h
asoc.h ASoC: soc-core: tidyup jack.h 2020-11-30 12:54:01 +00:00
avc.h selinux: add basic filtering for audit trace events 2020-08-21 17:07:29 -04:00
bcache.h block: remove superfluous param in blk_fill_rwbs() 2021-02-22 06:37:41 -07:00
block.h block: introduce block_rq_error tracepoint 2022-02-11 10:00:16 -07:00
bpf_test_run.h
bridge.h
btrfs.h Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
cachefiles.h cachefiles: add tracepoints for on-demand read mode 2022-05-18 00:11:18 +08:00
cgroup.h cgroup: Trace event cgroup id fields should be u64 2021-12-01 07:23:35 -10:00
clk.h clk: Trace clk_set_rate() "range" functions 2020-12-17 01:54:31 -08:00
cma.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
compaction.h tracing: incorrect gfp_t conversion 2022-05-13 07:20:18 -07:00
context_tracking.h
cpuhp.h
damon.h mm/damon: hide kernel pointer from tracepoint event 2022-01-15 16:30:33 +02:00
devfreq.h PM / devfreq: Add tracepoint for frequency changes 2020-10-26 10:52:37 +09:00
devlink.h devlink: Reduce struct devlink exposure 2021-10-12 16:29:16 -07:00
dlm.h fs: dlm: trace socket handling 2021-11-02 14:39:20 -05:00
dma_fence.h treewide: Add missing semicolons to __assign_str uses 2021-06-30 09:19:14 -04:00
erofs.h erofs: clean up erofs_map_blocks tracepoints 2021-12-09 10:02:10 +08:00
error_report.h panic: use error_report_end tracepoint on warnings 2022-01-20 08:52:55 +02:00
ext4.h fs: Remove flags parameter from aops->write_begin 2022-05-08 14:28:19 -04:00
f2fs.h f2fs-for-5.19 2022-05-31 16:52:59 -07:00
fib6.h
fib.h
filelock.h locks: Remove extra "0x" in tracepoint format specifier 2020-09-01 18:09:34 -04:00
filemap.h filemap: Convert tracing of page cache operations to folio 2022-01-04 13:15:33 -05:00
fs_dax.h
fs.h NFS: Move generic FS show macros to global header 2021-11-02 12:31:23 -04:00
fscache.h fscache: Add a tracepoint for cookie use/unuse 2022-01-11 22:13:01 +00:00
fsi_master_aspeed.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
fsi_master_ast_cf.h
fsi_master_gpio.h
fsi.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
gpio.h
gpu_mem.h gpu/trace: Minor comment updates for gpu_mem_total tracepoint 2020-05-07 13:32:57 -04:00
host1x.h
huge_memory.h mm/khugepaged: remove reuse_swap_page() usage 2022-03-24 19:06:51 -07:00
hwmon.h
i2c_slave.h i2c: add tracepoints for I2C slave events 2022-03-20 00:11:05 +01:00
i2c.h
ib_mad.h
ib_umad.h
initcall.h
intel_ifs.h trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations 2022-05-12 15:35:29 +02:00
intel_iommu.h iommu/vt-d: Add prq_report trace event 2021-06-10 09:06:13 +02:00
intel_ish.h
intel-sst.h
io_uring.h io_uring: move io_uring_get_opcode out of TP_printk 2022-06-23 08:40:36 -06:00
iocost.h blk-iocost: Add iocg idle state tracepoint 2020-12-17 07:55:44 -07:00
iommu.h iommu: Log iova range in map/unmap trace events 2021-12-06 11:59:31 +01:00
ipi.h
irq_matrix.h
irq.h
iscsi.h
jbd2.h jbd2,ext4: add a shrinker to release checkpointed buffers 2021-06-24 10:54:49 -04:00
kmem.h mm/page_alloc: fix tracepoint mm_page_alloc_zone_locked() 2022-05-19 14:08:54 -07:00
kvm.h KVM: x86/mmu: Drop trace_kvm_age_page() tracepoint 2021-04-17 08:30:56 -04:00
kyber.h kyber: avoid q->disk dereferences in trace points 2021-10-15 21:02:57 -06:00
libata.h ata: libata: add qc->flags in ata_qc_complete_template tracepoint 2022-06-17 16:30:03 +09:00
lock.h locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning 2022-04-05 10:24:36 +02:00
mce.h
mctp.h mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control 2022-02-09 12:00:11 +00:00
mdio.h
migrate.h mm/migration: add trace events for base page and HugeTLB migrations 2022-03-24 19:06:45 -07:00
mlxsw.h
mmap_lock.h mm: mmap_lock: use DECLARE_EVENT_CLASS and DEFINE_EVENT_FN 2021-11-06 13:30:36 -07:00
mmap.h mm: mmap: add trace point of vm_unmapped_area 2020-04-02 09:35:30 -07:00
mmc.h
mmflags.h include/trace/events/mmflags.h: cleanup for "tracing: incorrect gfp_t conversion" 2022-05-25 10:47:47 -07:00
module.h
mptcp.h mptcp: dump infinite_map field in mptcp_dump_mpext 2022-04-23 11:51:05 +01:00
napi.h
nbd.h
neigh.h
net_probe_common.h
net.h net: dev: Makes sure netif_rx() can be invoked in any context. 2022-02-14 13:38:35 +00:00
netfs.h netfs: Add a function to consolidate beginning a read 2022-03-18 09:29:05 +00:00
netlink.h netlink: add tracepoint at NL_SET_ERR_MSG 2021-02-04 18:05:59 -08:00
nfs.h NFS: Move NFS protocol display macros to global header 2021-11-02 12:31:23 -04:00
nilfs2.h
nmi.h
objagg.h
oom.h
osnoise.h tracing: Fix spelling in osnoise tracer "interferences" -> "interference" 2021-06-28 14:12:27 -04:00
page_isolation.h
page_pool.h mm, tracing: unify PFN format strings 2021-06-29 10:53:52 -07:00
page_ref.h mm: introduce PAGEFLAGS_MASK to replace ((1UL << NR_PAGEFLAGS) - 1) 2021-09-08 11:50:24 -07:00
pagemap.h mm/lru: Convert __pagevec_lru_add_fn to take a folio 2021-10-18 07:49:40 -04:00
percpu.h include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace" 2022-05-25 10:47:48 -07:00
power_cpu_migrate.h
power.h PM: QoS: Simplify definitions of CPU latency QoS trace events 2020-02-13 11:26:39 +01:00
preemptirq.h tracing: Change offset type to s32 in preempt/irq tracepoints 2020-01-03 11:34:37 -05:00
printk.h
pwc.h
pwm.h pwm: Implement tracing for .get_state() and .apply_state() 2020-01-20 12:28:37 +01:00
qdisc.h qdisc: add new field for qdisc_enqueue tracepoint 2021-07-27 14:16:38 +01:00
qla.h scsi: qla2xxx: Suppress two recently introduced compiler warnings 2020-05-19 21:43:01 -04:00
qrtr.h net: qrtr: Add tracepoint support 2020-04-22 12:55:54 -07:00
rcu.h rcu: Refactor rcu_barrier() empty-list handling 2022-02-08 10:12:28 -08:00
rdma_core.h RDMA/core: Add trace points to follow MR allocation 2020-01-07 16:10:53 -04:00
rdma.h RDMA/core: Move the rdma_show_ib_cm_event() macro 2020-08-24 16:01:47 -03:00
regulator.h regulator: core: Add regulator bypass trace points 2020-05-29 17:17:02 +01:00
rpcgss.h sunrpc: fix header include guard in trace header 2021-11-17 18:27:32 -05:00
rpcrdma.h A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping 2021-11-10 16:45:54 -08:00
rpm.h PM-runtime: add tracepoints for usage_count changes 2020-01-13 12:28:29 +01:00
rseq.h
rtc.h
rxrpc.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-05-23 21:19:17 -07:00
sched.h sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
scmi.h include: trace: Add new scmi_xfer_response_wait event 2021-12-13 17:45:36 +00:00
scsi.h scsi: core: Kill message byte 2021-05-31 22:48:24 -04:00
sctp.h sctp: move trace_sctp_probe_path into sctp_outq_sack 2019-12-26 13:06:45 -08:00
signal.h
siox.h
skb.h tcp: add drop reason support to tcp_ofo_queue() 2022-04-17 13:31:32 +01:00
smbus.h
sock.h net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer 2022-07-08 12:06:17 +01:00
spi.h spi: Enable tracing of the SPI setup CS selection 2021-05-26 21:22:13 +01:00
spmi.h
sunrpc_base.h SUNRPC: Tracepoints should display tk_pid and cl_clid as a fixed-size field 2021-10-20 18:09:54 -04:00
sunrpc.h SUNRPC: Remove svc_rqst::rq_xprt_hlen 2022-05-19 12:25:39 -04:00
sunvnet.h
swiotlb.h swiotlb: make the swiotlb_init interface more useful 2022-04-18 07:21:11 +02:00
syscalls.h
target.h scsi: target: core: Add CONTROL field for trace events 2020-10-02 18:36:19 -04:00
task.h
tcp.h tcp: Add tracepoint for tcp_set_ca_state 2022-04-07 20:33:15 -07:00
tegra_apb_dma.h
thermal_power_allocator.h
thermal_pressure.h arch_topology: Trace the update thermal pressure 2022-05-06 09:57:38 +02:00
thermal.h thermal: devfreq_cooling: change tracing function and arguments 2020-12-11 14:10:44 +01:00
thp.h mm/migration: add trace events for THP migrations 2022-03-24 19:06:45 -07:00
timer.h tracing/timer: Add missing argument documentation of trace points 2022-04-14 16:14:49 +02:00
tlb.h
udp.h
ufs.h scsi: ufs: core: Enable power management for wlun 2021-05-10 22:28:20 -04:00
v4l2.h media: v4l2: abstract timeval handling in v4l2_buffer 2020-01-03 15:43:35 +01:00
vb2.h
vmscan.h tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate 2022-05-19 14:08:55 -07:00
vsock_virtio_transport_common.h virtio/vsock: update trace event for SEQPACKET 2021-06-11 13:32:47 -07:00
wbt.h bdi: use bdi_dev_name() to get device name 2020-05-09 16:07:39 -06:00
workqueue.h workqueue: Fix type of cpu in trace event 2022-06-07 07:09:47 -10:00
writeback.h remove congestion tracking framework 2022-03-22 15:57:01 -07:00
xdp.h xdp: Extend xdp_redirect_map with broadcast support 2021-05-26 09:46:16 +02:00
xen.h x86/mm/tlb: Flush remote and local TLBs concurrently 2021-03-06 12:59:10 +01:00