panic: cannot allocate memory

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12d470a7480000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=804ca2f13213ebeb2a78
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+804ca2...@syzkaller.appspotmail.com

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panic: cannot allocate memory

goroutine 32 [running]:
github.com/google/syzkaller/pkg/image.mustDecompress({0xc01b9ae480, 0x410, 0x480})
/syzkaller/gopath/src/github.com/google/syzkaller/pkg/image/compression_optimized.go:65 +0x5cb
github.com/google/syzkaller/pkg/image.MustDecompress({0xc01b9ae480, 0x0, 0xc})
/syzkaller/gopath/src/github.com/google/syzkaller/pkg/image/compression.go:36 +0x3b
github.com/google/syzkaller/prog.checkCompressedArg(0xc01c0232f0, 0x8, 0xc003d5bd18)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/hints.go:162 +0x7f
github.com/google/syzkaller/prog.generateHints(0xc029bc4d20, {0xce7cb8, 0xc01c0232f0}, 0xc029bc4d20)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/hints.go:122 +0x1f6
github.com/google/syzkaller/prog.(*Prog).MutateWithHints.func2({0xce7cb8, 0xc01c0232f0}, 0x925f25)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/hints.go:81 +0x34
github.com/google/syzkaller/prog.foreachArgImpl({0xce7cb8, 0xc01c0232f0}, 0xc01b99a640, 0xc003d5bd00)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:134 +0x148
github.com/google/syzkaller/prog.foreachArgImpl({0xce7d38, 0xc01c0232c0}, 0xc01b99a640, 0xc003d5bd00)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:168 +0x337
github.com/google/syzkaller/prog.ForeachArg(0xc01b9aa410, 0x0)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:127 +0x105
github.com/google/syzkaller/prog.(*Prog).MutateWithHints(0xc022436100, 0x0, 0xc01b519f50, 0xc011925d80)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/hints.go:80 +0xaa
main.(*Proc).executeHintSeed(0xc022436100, 0xab25b2, 0x0)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:248 +0xd2
main.(*Proc).smashInput(0xc022436100, 0xc0200f5980)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:214 +0x88
main.(*Proc).loop(0xc022436100)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0x125
created by main.main
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:310 +0x15e5


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