freebsd-skq/sys/kern
markj 88b25bcb9d Fix handling of PIPE_EOF in the direct write path.
Suppose a writing thread has pinned its pages and gone to sleep with
pipe_map.cnt > 0.  Suppose that the thread is woken up by a signal (so
error != 0) and the other end of the pipe has simultaneously been
closed.  In this case, to satisfy the assertion about pipe_map.cnt in
pipe_destroy_write_buffer(), we must mark the buffer as empty.

Reported by:	syzbot+5cce271bf2cb1b1e1876@syzkaller.appspotmail.com
Reviewed by:	kib
Tested by:	pho
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22261
2019-11-11 20:44:30 +00:00
..
bus_if.m Add necessary bits for Linux KPI to work correctly on powerpc 2019-08-04 19:28:10 +00:00
capabilities.conf Add a shm_open2 syscall to support upcoming memfd_create 2019-09-25 17:59:15 +00:00
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
genoffset.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
genoffset.sh expose thread_lite definition to tied modules 2018-07-03 02:50:07 +00:00
imgact_aout.c Switch to use shared vnode locks for text files during image activation. 2019-05-05 11:20:43 +00:00
imgact_binmisc.c Add helper functions to copy strings into struct image_args. 2018-11-29 21:00:56 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c avoid kernel stack data leak in core dump thrmisc note 2019-10-31 20:42:36 +00:00
imgact_shell.c Add helper functions to copy strings into struct image_args. 2018-11-29 21:00:56 +00:00
init_main.c Remove epoch tracker from struct thread. It was an ugly crutch to emulate 2019-10-21 18:19:32 +00:00
init_sysent.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
kern_acct.c
kern_alq.c
kern_clock.c Update td_runtime of running thread on each statclock(). 2019-06-14 01:09:10 +00:00
kern_clocksource.c Rename hardclock_cnt() to hardclock() and remove the old implementation. 2018-09-06 02:10:59 +00:00
kern_condvar.c
kern_conf.c Remove the remnants of SI_CHEAPCLONE 2019-10-05 21:52:06 +00:00
kern_cons.c Replace ttyprintf with sbuf_printf and tty drain routine 2018-10-20 18:31:36 +00:00
kern_context.c Remove superfluous bzero in getcontext/swapcontext/sendsig 2018-11-26 20:56:05 +00:00
kern_cpu.c kern_cpu: When adding abs frequency allow for unordered insertion 2018-07-19 11:28:14 +00:00
kern_cpuset.c Remove a redundant NULL pointer check in cpuset_modify_domain(). 2019-09-12 16:47:38 +00:00
kern_ctf.c Convert DDB_CTF to use newer version of ZLIB. 2019-08-08 07:27:49 +00:00
kern_descrip.c Disallow fcntl(F_READAHEAD) when the vnode is not a regular file. 2019-10-02 15:45:49 +00:00
kern_dtrace.c systrace: track it like sdt probes 2018-04-27 15:16:34 +00:00
kern_dump.c [PPC64] Initial kernel minidump implementation 2019-10-14 13:04:04 +00:00
kern_environment.c Follow up r352244: kenv: tighten up assertions 2019-09-12 14:34:46 +00:00
kern_et.c
kern_event.c Avoid relying on header pollution from sys/refcount.h. 2019-07-29 20:26:01 +00:00
kern_exec.c (4/6) Protect page valid with the busy lock. 2019-10-15 03:45:41 +00:00
kern_exit.c proc: clear pid bitmap entry after dropping proctree lock 2019-09-02 12:46:43 +00:00
kern_fail.c
kern_ffclock.c
kern_fork.c rfork(2): add RFSPAWN flag 2019-09-25 19:20:41 +00:00
kern_hhook.c
kern_idle.c
kern_intr.c Disable intr_storm_threshold mechanism by default 2019-05-24 22:33:14 +00:00
kern_jail.c Replace hand-rolled unrefs if > 1 with refcount_release_if_not_last 2018-12-07 16:11:45 +00:00
kern_kcov.c Change synchonization rules for vm_page reference counting. 2019-09-09 21:32:42 +00:00
kern_khelp.c
kern_kthread.c proc: always store parent pid in p_oppid 2018-11-16 17:07:54 +00:00
kern_ktr.c Drop "All rights reserved" from my copyright statements. 2019-03-06 22:11:45 +00:00
kern_ktrace.c Reduce overhead of ktrace checks in the common case. 2018-05-09 00:00:47 +00:00
kern_linker.c Add flags variants to linker_files / stack(9) symbol resolution 2018-10-20 18:08:43 +00:00
kern_lock.c Add lockmgr(9) probes to the lockstat DTrace provider. 2019-08-21 23:43:58 +00:00
kern_lockf.c lockf: annotate LOCKF_DEBUG only var 2018-05-19 05:04:38 +00:00
kern_lockstat.c Add lockmgr(9) probes to the lockstat DTrace provider. 2019-08-21 23:43:58 +00:00
kern_loginclass.c Replace hand-rolled unrefs if > 1 with refcount_release_if_not_last 2018-12-07 16:11:45 +00:00
kern_malloc.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
kern_mbuf.c Split out a more generic debugnet(4) from netdump(4) 2019-10-17 16:23:03 +00:00
kern_mib.c Add missing include of sys/boot.h 2019-06-24 20:52:21 +00:00
kern_module.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
kern_mtxpool.c Increase MTX_POOL_SLEEP_SIZE from 128 to 1024. 2018-12-24 23:52:35 +00:00
kern_mutex.c INVARIANTS: treat LA_LOCKED as the same of LA_XLOCKED in mtx_assert. 2019-08-23 06:39:40 +00:00
kern_ntptime.c Clear pad bytes in the struct exported by kern.ntp_pll.gettime. 2018-11-20 20:32:10 +00:00
kern_osd.c
kern_physio.c Allocate pager bufs from UMA instead of 80-ish mutex protected linked list. 2019-01-15 01:02:16 +00:00
kern_pmc.c Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
kern_poll.c
kern_priv.c Check for probes enabled in priv_check_cred before evaluting the error. 2018-12-19 23:28:29 +00:00
kern_proc.c Remove page locking from pmap_mincore(). 2019-10-16 22:03:27 +00:00
kern_procctl.c Add procctl(PROC_STACKGAP_CTL) 2019-09-03 18:56:25 +00:00
kern_prot.c Only enable COMPAT_43 changes for syscalls ABI for a.out processes. 2019-08-11 19:16:07 +00:00
kern_racct.c proc: eliminate the zombproc list 2019-08-28 16:18:23 +00:00
kern_rangelock.c rangelock: add rangelock_cookie_assert 2019-09-15 02:59:53 +00:00
kern_rctl.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_resource.c Fix a typo introduced in r344133 2019-03-18 12:41:42 +00:00
kern_rmlock.c Make no assertions about lock state when the scheduler is stopped. 2018-11-13 20:48:05 +00:00
kern_rwlock.c Drop "All rights reserved" from my copyright statements. 2019-03-06 22:11:45 +00:00
kern_sdt.c
kern_sema.c
kern_sendfile.c If vm_pager_get_pages_async() returns an error synchronously we leak wired 2019-11-06 23:45:43 +00:00
kern_sharedpage.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
kern_shutdown.c debug,kassert.warnings is a statistic, not a tunable 2019-10-21 12:21:56 +00:00
kern_sig.c rfork(2): add RFSPAWN flag 2019-09-25 19:20:41 +00:00
kern_switch.c make critical_{enter, exit} inline 2018-07-03 01:55:09 +00:00
kern_sx.c sx: retire SX_NOADAPTIVE 2018-12-05 16:43:03 +00:00
kern_synch.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
kern_syscalls.c fix a typo resulting in a wrong variable in kern_syscall_deregister 2018-08-02 09:41:55 +00:00
kern_sysctl.c sysctl: use names instead of magic numbers. 2019-09-18 16:13:10 +00:00
kern_tc.c Initialize timehands linkage much earlier. 2019-09-09 12:42:48 +00:00
kern_thr.c Don't acquire evclass_lock with a spinlock held 2018-07-11 19:38:42 +00:00
kern_thread.c amd64: move pcb out of kstack to struct thread. 2019-10-25 20:09:42 +00:00
kern_time.c Disallow excessively small times of day in clock_settime(2). 2019-05-03 21:26:44 +00:00
kern_timeout.c Allocate callout wheel from the respective memory domain. 2019-09-21 15:38:08 +00:00
kern_tslog.c
kern_ubsan.c Teach the kernel KUBSAN runtime about alignment_assumption 2019-05-28 09:12:15 +00:00
kern_umtx.c Make umtxq_check_susp() to correctly handle thread exit requests. 2019-08-01 14:34:27 +00:00
kern_uuid.c Use sbuf_cat() in GEOM confxml generation. 2019-06-19 15:36:02 +00:00
kern_xxx.c Normalize COMPAT_43 syscall declarations. 2018-12-04 16:48:47 +00:00
ksched.c
link_elf_obj.c Apply mapping protections to preloaded kernel modules on amd64. 2019-10-18 13:56:45 +00:00
link_elf.c Apply mapping protections to preloaded kernel modules on amd64. 2019-10-18 13:56:45 +00:00
linker_if.m
Make.tags.inc Remove a couple of harmless stray references to nandfs. 2019-06-25 16:39:25 +00:00
Makefile Don't use an .OBJDIR for 'make sysent'. 2018-01-29 19:14:15 +00:00
makesyscalls.sh Restore the ability to set capenabled directly in syscalls.conf. 2019-09-30 20:58:29 +00:00
md4c.c
md5c.c
msi_if.m
p1003_1b.c
pic_if.m
posix4_mib.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
sched_4bsd.c Reduce umtx-related work on exec and exit 2019-05-08 16:30:38 +00:00
sched_ule.c Microoptimize sched_pickcpu() CPU affinity on SMT. 2019-09-26 00:35:06 +00:00
serdev_if.m
stack_protector.c Revert r346292 (permit_nonrandom_stackcookies) 2019-05-13 23:37:44 +00:00
subr_acl_nfs4.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
subr_acl_posix1e.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
subr_autoconf.c
subr_blist.c Address problems in blist_alloc introduced in r349777. The swap block allocator could become corrupted 2019-07-11 20:52:39 +00:00
subr_boot.c When parsing command line stuff, treat tabs and spaces the same. 2019-04-18 22:52:12 +00:00
subr_bufring.c
subr_bus_dma.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
subr_bus.c Allocate device softc from the device domain. 2019-10-12 19:03:07 +00:00
subr_busdma_bufalloc.c Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
subr_capability.c kern_sendit: use pre-initialized rights 2018-05-23 01:48:09 +00:00
subr_clock.c Kill tz_minuteswest and tz_dsttime. 2019-03-12 04:49:47 +00:00
subr_compressor.c GZIO: Update to use zlib 1.2.11. 2019-08-25 07:50:44 +00:00
subr_counter.c Fix pre-SI_SUB_CPU initialization of per-CPU counters. 2018-07-10 00:18:12 +00:00
subr_coverage.c Extract the coverage sanitizer KPI to a new file. 2019-01-29 11:04:17 +00:00
subr_devmap.c Generalize ARM specific comments in devmap 2019-10-15 23:21:52 +00:00
subr_devstat.c devstat(9): Constify function parameters that can be const 2018-08-23 01:42:45 +00:00
subr_disk.c Fix botched merge with 355066 2019-03-12 05:10:41 +00:00
subr_dummy_vdso_tc.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
subr_early.c Add a file missed in r339321 2018-10-12 00:32:45 +00:00
subr_epoch.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_eventhandler.c Include ktr.h in more compilation units 2019-05-21 20:38:48 +00:00
subr_fattime.c Use const pointers for input data not modified by clock utility functions. 2018-02-06 22:17:01 +00:00
subr_filter.c This commit adds BBR (Bottleneck Bandwidth and RTT) congestion control. This 2019-09-24 18:18:11 +00:00
subr_firmware.c
subr_gtaskqueue.c Some more taskqueue optimizations. 2019-11-01 22:49:44 +00:00
subr_hash.c Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
subr_hints.c res_find: Fix fallback logic 2018-08-18 19:45:56 +00:00
subr_intr.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
subr_kdb.c Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
subr_kobj.c Prevent some kobj memory allocation failures from panicking the system. 2019-01-31 22:27:39 +00:00
subr_lock.c lockprof: move per-cpu data to dpcpu 2019-09-22 20:44:24 +00:00
subr_log.c
subr_mchain.c
subr_module.c Have preload_delete_name() free pages backing preloaded data. 2018-07-19 20:00:28 +00:00
subr_msgbuf.c msgbuf: Light detailing (const'ify and bool'itize) 2018-08-09 17:42:27 +00:00
subr_param.c riscv: restore default HZ=1000, keep QEMU at HZ=100 2019-09-07 05:13:31 +00:00
subr_pcpu.c vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
subr_pctrie.c kern/subr_pctrie: Fix mismatched signedness in assertion comparison 2019-04-06 21:56:24 +00:00
subr_pidctrl.c When pidctrl_daemon() is called multiple times within an interval, it 2018-06-07 07:48:50 +00:00
subr_power.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
subr_prf.c device_printf: Use sbuf for more coherent prints on SMP 2019-05-07 17:47:20 +00:00
subr_prof.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
subr_rangeset.c Implement rangesets. 2019-02-20 09:38:19 +00:00
subr_rman.c add support for marking interrupt handlers as suspended 2018-12-17 17:11:00 +00:00
subr_rtc.c Improve error messages from clock_if.m method failures. 2018-09-02 20:17:51 +00:00
subr_sbuf.c sbuf(9): Add sbuf_nl_terminate() API 2019-08-07 19:27:14 +00:00
subr_scanf.c Add support for 'j', 't' and 'z' flags to kernel sscanf(). 2019-08-16 19:46:22 +00:00
subr_sfbuf.c Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the 2018-01-19 17:46:31 +00:00
subr_sglist.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
subr_sleepqueue.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_smp.c x86: Implement MWAIT support for stopping a CPU 2019-05-04 20:34:26 +00:00
subr_stack.c Add debugging facility EPOCH_TRACE that checks that epochs entered are 2019-09-25 18:26:31 +00:00
subr_stats.c libstats: Improve ABI assertion. 2019-11-06 19:44:44 +00:00
subr_syscall.c Don't pass error from syscallenter() to syscallret(). 2019-07-15 21:25:16 +00:00
subr_taskqueue.c Some more taskqueue optimizations. 2019-11-01 22:49:44 +00:00
subr_terminal.c kernel terminal should initialize fg and bg variables before calling TUNABLE_INT_FETCH 2019-09-26 07:19:26 +00:00
subr_trap.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_turnstile.c Fix the turnstile_lock() KPI. 2019-07-24 23:04:59 +00:00
subr_uio.c simplify control flow so that gcc knows we never pass save to curthread_pflags_restore 2018-05-19 04:04:44 +00:00
subr_unit.c Implement unr64 2018-11-20 14:58:41 +00:00
subr_vmem.c Don't free the cursor boundary tag during vmem_destroy(). 2019-10-09 21:20:39 +00:00
subr_witness.c Only check the blessings table for known LORs. 2019-08-02 18:01:47 +00:00
sys_capability.c Let kern.trap_enotcap be set as a tunable. 2018-12-06 17:29:37 +00:00
sys_generic.c devfs: plug redundant bwillwrite avoidance 2019-10-05 17:44:33 +00:00
sys_getrandom.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sys_pipe.c Fix handling of PIPE_EOF in the direct write path. 2019-11-11 20:44:30 +00:00
sys_procdesc.c procdesc: fix the function name 2019-08-05 20:31:17 +00:00
sys_process.c Define macro VM_MAP_ENTRY_FOREACH for enumerating the entries in a vm_map. 2019-10-08 07:14:21 +00:00
sys_socket.c
syscalls.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
syscalls.master sysalls.master: remove superfluous ellipsis in comment 2019-10-01 17:05:21 +00:00
systrace_args.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
sysv_ipc.c sysv: get rid of fork/exit hooks if the code is compiled in 2019-05-04 19:05:30 +00:00
sysv_msg.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
sysv_sem.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sysv_shm.c sysv: get rid of fork/exit hooks if the code is compiled in 2019-05-04 19:05:30 +00:00
tty_compat.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
tty_info.c Avoid fixing the tty_info() buffer size in tty.h. 2018-11-06 23:41:44 +00:00
tty_inq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_outq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_pts.c Move 32-bit compat support for FIODGNAME to the right place. 2018-10-26 17:59:25 +00:00
tty_tty.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
tty_ttydisc.c Replace ttyprintf with sbuf_printf and tty drain routine 2018-10-20 18:31:36 +00:00
tty.c Defer funsetown() calls for a TTY to tty_rel_free(). 2019-07-04 15:42:02 +00:00
uipc_accf.c
uipc_debug.c Load balance sockets with new SO_REUSEPORT_LB option. 2018-06-06 15:45:57 +00:00
uipc_domain.c Remove pfctlinput2(). It came from KAME and had never ever been in use. 2019-10-15 15:40:03 +00:00
uipc_ktls.c Mechanically convert INP_INFO_RLOCK() to NET_EPOCH_ENTER(). 2019-11-07 00:08:34 +00:00
uipc_mbuf2.c m_pulldown(): Change an if () panic() into a KASSERT(). 2019-11-06 22:40:19 +00:00
uipc_mbuf.c kTLS: Fix a bug where we would not encrypt anon data inplace. 2019-09-27 20:08:19 +00:00
uipc_mbufhash.c
uipc_mqueue.c mqueuefs: fix compat32 struct file leak 2019-08-20 17:44:03 +00:00
uipc_sem.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
uipc_shm.c (4/6) Protect page valid with the busy lock. 2019-10-15 03:45:41 +00:00
uipc_sockbuf.c Add kernel-side support for in-kernel TLS. 2019-08-27 00:01:56 +00:00
uipc_socket.c Cleanup unneeded includes that crept in with r353292. 2019-10-09 16:59:42 +00:00
uipc_syscalls.c Only enable COMPAT_43 changes for syscalls ABI for a.out processes. 2019-08-11 19:16:07 +00:00
uipc_usrreq.c Fix handling of empty SCM_RIGHTS messages. 2019-10-08 23:34:48 +00:00
vfs_acl.c Reduce duplication in __acl_*_(file|link). 2018-02-15 21:24:43 +00:00
vfs_aio.c Allocate pager bufs from UMA instead of 80-ish mutex protected linked list. 2019-01-15 01:02:16 +00:00
vfs_bio.c Drop the object lock in vfs_bio and cluster where it is now safe to do so. 2019-10-29 20:37:59 +00:00
vfs_cache.c cache: decrease ncnegfactor to 5 2019-09-27 19:14:03 +00:00
vfs_cluster.c Drop the object lock in vfs_bio and cluster where it is now safe to do so. 2019-10-29 20:37:59 +00:00
vfs_default.c vfs: apply r352437 to the fast path as well 2019-09-17 15:53:40 +00:00
vfs_export.c Ensure that directory entry padding bytes are zeroed. 2018-11-23 22:24:59 +00:00
vfs_extattr.c extattr_list_vp: Narrow locked section somewhat 2019-02-05 04:47:21 +00:00
vfs_hash.c vfs: implement usecount implying holdcnt 2019-09-03 15:42:11 +00:00
vfs_init.c vfs: add optional root vnode caching 2019-10-06 22:14:32 +00:00
vfs_lookup.c NDFREE(): Fix unlocking for LOCKPARENT|LOCKLEAF and ndp->ni_dvp == ndp->ni_vp. 2019-05-21 15:12:13 +00:00
vfs_mount.c vfs: add optional root vnode caching 2019-10-06 22:14:32 +00:00
vfs_mountroot.c mountroot: run statfs after mounting devfs 2019-10-11 17:04:38 +00:00
vfs_subr.c Replace OBJ_MIGHTBEDIRTY with a system using atomics. Remove the TMPFS_DIRTY 2019-10-29 21:06:34 +00:00
vfs_syscalls.c Update copy_file_range(2) to be Linux5 compatible. 2019-11-10 01:08:14 +00:00
vfs_vnops.c Update copy_file_range(2) to be Linux5 compatible. 2019-11-10 01:08:14 +00:00
vnode_if.src vfs: add VOP_NEED_INACTIVE 2019-08-28 20:34:24 +00:00