Don't re-initialize package level var native to fix data race #637
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@aboch PTAL |
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👍 |
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pls push again so CI is triggered |
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LGTM |
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done, rebased and pushed again |
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please squash your two commits into one |
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The package level var native (holding the native endianness) is initialized at package load time. Thus there is no need to re-initalize it in functions using it, e.g. (*Handle).filterModify, parseU32Data, parseFwData, parseBpfData and parseMatchAllData. This fixes a data race between these functions and any read access of var native, e.g. in LinkDeserialize as reported in issue vishvananda#633. Also don't re-declare local variables shadowing the global package-level var. Fixes vishvananda#633 Signed-off-by: Tobias Klauser <[email protected]>
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tklauser
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May 10, 2021
…hOptions This was missed in vishvananda#637 due to it being introduced by vishvananda#623, which was merged just recently. Signed-off-by: Tobias Klauser <[email protected]>
aboch
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…hOptions This was missed in #637 due to it being introduced by #623, which was merged just recently. Signed-off-by: Tobias Klauser <[email protected]>
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This pulls in vishvananda/netlink#637 and vishvananda/netlink#648 with data race fixes. Fixes #15438 Signed-off-by: Tobias Klauser <[email protected]>
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This pulls in vishvananda/netlink#637 and vishvananda/netlink#648 with data race fixes. Fixes #15438 Signed-off-by: Tobias Klauser <[email protected]>
glibsm
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May 12, 2021
[ upstream commit f7bd191 ] This pulls in vishvananda/netlink#637 and vishvananda/netlink#648 with data race fixes. Fixes cilium#15438 Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Glib Smaga <[email protected]>
aanm
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May 13, 2021
[ upstream commit f7bd191 ] This pulls in vishvananda/netlink#637 and vishvananda/netlink#648 with data race fixes. Fixes #15438 Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Glib Smaga <[email protected]>
gkodali-zededa
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May 21, 2021
…hOptions This was missed in vishvananda#637 due to it being introduced by vishvananda#623, which was merged just recently. Signed-off-by: Tobias Klauser <[email protected]>
cyberys
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Apr 5, 2022
…hOptions This was missed in vishvananda#637 due to it being introduced by vishvananda#623, which was merged just recently. Signed-off-by: Tobias Klauser <[email protected]>
cjmakes
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…hOptions This was missed in vishvananda#637 due to it being introduced by vishvananda#623, which was merged just recently. Signed-off-by: Tobias Klauser <[email protected]>
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The package level
var native(holding the native endianness) isinitialized at package load time. Thus there is no need to re-initalize
it in
(*Handle).filterModify,parseU32Data,parseFwData,parseBpfDataand
parseMatchAllData. This fixes a data race between these functionsand any read access of
var native, e.g. inLinkDeserializeas reportedin issue #633.
The second commit, while not directly related to the data race drops local re-declarations of
var nativeusingnative := NativeEndian(). Instead the package-level global var can be usedFixes #633