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PiperOrigin-RevId: 350223482
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This includes minor fix-ups:
* Handle SIGTERM in runsc debug, to exit gracefully.
* Fix cmd.debug.go opening all profiles as RDONLY.
* Fix the test name in fio_test.go, and encode the block size in the test.
PiperOrigin-RevId: 350205718
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Reported-by: syzbot+814105309d2ae8651084@syzkaller.appspotmail.com
PiperOrigin-RevId: 350159452
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Syzkaller discovered this bug in pipefs by doing something quite strange:
creat(&(0x7f0000002a00)='./file1\x00', 0x0)
mount(&(0x7f0000000440)=ANY=[], &(0x7f00000002c0)='./file1\x00', &(0x7f0000000300)='devtmpfs\x00', 0x20000d, 0x0)
creat(&(0x7f0000000000)='./file1/file0\x00', 0x0)
This can be reproduced with:
touch mymount
mkfifo /dev/mypipe
mount -o ro -t devtmpfs devtmpfs mymount
echo 123 > mymount/mypipe
PiperOrigin-RevId: 349687714
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This allows for a model of profiling when you can start collection, and
it will terminate when the sandbox terminates. Without this synchronous
call, it is effectively impossible to collect length blocking and mutex
profiles.
PiperOrigin-RevId: 349483418
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open() has to return ENXIO in this case.
O_PATH isn't supported by vfs1.
PiperOrigin-RevId: 348820478
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PiperOrigin-RevId: 348696094
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PiperOrigin-RevId: 348092999
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PiperOrigin-RevId: 348056159
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PiperOrigin-RevId: 348055514
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Closes #5128
PiperOrigin-RevId: 348052446
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Introduces the per-socket error queue and the necessary cmsg mechanisms.
PiperOrigin-RevId: 348028508
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PiperOrigin-RevId: 347890782
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PiperOrigin-RevId: 347720083
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PiperOrigin-RevId: 347711998
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PiperOrigin-RevId: 347706953
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syzkaller reported the closing of a nil channel. This is only possible when the
AIOContext was destroyed twice.
Some scenarios that could lead to this:
- It died and then some called aioCtx.Prepare() on it and then killed it again
which could cause the double destroy. The context could have been destroyed
in between the call to LookupAIOContext() and Prepare().
- aioManager was destroyed but it did not update the contexts map. So
Lookup could still return a dead AIOContext and then someone could call
Prepare on it and kill it again.
So added a check in aioCtx.Prepare() for the context being dead. This will
prevent a dead context from resurrecting.
Also refactored code to destroy the aioContext consistently. Earlier we were not
munmapping the aioContexts that were destroyed upon aioManager destruction.
Reported-by: syzbot+ef6a588d0ce6059991d2@syzkaller.appspotmail.com
PiperOrigin-RevId: 347704347
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We want to make the recvmsg syscall to the host regardless of if the dst is
empty or not so that:
- Host can populate the control messages if necessary.
- Host can return sender address.
- Host can return appropriate errors.
Earlier because we were using the IOSequence.CopyOutFrom() API, the usermem
package does not even call the Reader function if the destination is empty (as
an optimization).
PiperOrigin-RevId: 347684566
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PiperOrigin-RevId: 347671070
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PiperOrigin-RevId: 347660920
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There are surprisingly few syscall tests that run with hostinet. For example
running the following command only returns two results:
`bazel query test/syscalls:all | grep hostnet`
I think as a result, as our control messages evolved, hostinet was left
behind. Update it to support all control messages netstack supports.
This change also updates sentry's control message parsing logic to make it up to
date with all the control messages we support.
PiperOrigin-RevId: 347508892
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PiperOrigin-RevId: 347437786
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We should not assert that all resources are dropped after saving.
PiperOrigin-RevId: 347420131
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SO_OOBINLINE option is set/get as boolean value, which is the same as linux.
As we currently do not support disabling this option, we always return it as
true.
PiperOrigin-RevId: 347413905
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PiperOrigin-RevId: 347091372
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