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| author | Ian Lance Taylor <iant@golang.org> | 2021-03-30 12:21:20 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-03-31 03:52:40 +0000 |
| commit | 0e8a72b62efa44fa01eccb94d47a051366cb6d17 (patch) | |
| tree | b89f11fd82e270383b878e3640e18157c91f3f94 /src | |
| parent | c93cd8614965c6c114671fabf82b69fbd952f52f (diff) | |
| download | go-0e8a72b62efa44fa01eccb94d47a051366cb6d17.tar.xz | |
runtime: check for sysAlloc failures in pageAlloc
Change-Id: I78c5744bb01988f1f599569703d83fd21542ac7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/305911
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/runtime/mpagealloc.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/mpagealloc.go b/src/runtime/mpagealloc.go index dac1f39969..071f1fc274 100644 --- a/src/runtime/mpagealloc.go +++ b/src/runtime/mpagealloc.go @@ -395,6 +395,9 @@ func (p *pageAlloc) grow(base, size uintptr) { // Store it atomically to avoid races with readers which // don't acquire the heap lock. r := sysAlloc(unsafe.Sizeof(*p.chunks[0]), p.sysStat) + if r == nil { + throw("pageAlloc: out of memory") + } atomic.StorepNoWB(unsafe.Pointer(&p.chunks[c.l1()]), r) } p.chunkOf(c).scavenged.setRange(0, pallocChunkPages) |