https://github.com/torvalds/linux
Christopher Covington reported a crash on aarch64 on recent Fedora kernels: kernel BUG at ./include/linux/scatterlist.h:140! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 752 Comm: cryptomgr_test Not tainted 4.9.0-11815-ge93b1cc #162 Hardware name: linux,dummy-virt (DT) task: ffff80007c650080 task.stack: ffff800008910000 PC is at sg_init_one+0xa0/0xb8 LR is at sg_init_one+0x24/0xb8 ... [<ffff000008398db8>] sg_init_one+0xa0/0xb8 [<ffff000008350a44>] test_acomp+0x10c/0x438 [<ffff000008350e20>] alg_test_comp+0xb0/0x118 [<ffff00000834f28c>] alg_test+0x17c/0x2f0 [<ffff00000834c6a4>] cryptomgr_test+0x44/0x50 [<ffff0000080dac70>] kthread+0xf8/0x128 [<ffff000008082ec0>] ret_from_fork+0x10/0x50 The test vectors used for input are part of the kernel image. These inputs are passed as a buffer to sg_init_one which eventually blows up with BUG_ON(!virt_addr_valid(buf)). On arm64, virt_addr_valid returns false for the kernel image since virt_to_page will not return the correct page. Fix this by copying the input vectors to heap buffer before setting up the scatterlist. Reported-by: Christopher Covington <cov@codeaurora.org> Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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- v2.6.20-rc7
- v2.6.20-rc6
- v2.6.20-rc5
- v2.6.20-rc4
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- v2.6.20-rc1
- v2.6.20
- v2.6.19-rc6
- v2.6.19-rc5
- v2.6.19-rc4
- v2.6.19-rc3
- v2.6.19-rc2
- v2.6.19-rc1
- v2.6.19
- v2.6.18-rc7
- v2.6.18-rc6
- v2.6.18-rc5
- v2.6.18-rc4
- v2.6.18-rc3
- v2.6.18-rc2
- v2.6.18-rc1
- v2.6.18
- v2.6.17-rc6
- v2.6.17-rc5
- v2.6.17-rc4
- v2.6.17-rc3
- v2.6.17-rc2
- v2.6.17-rc1
- v2.6.17
- v2.6.16-rc6
- v2.6.16-rc5
- v2.6.16-rc4
- v2.6.16-rc3
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- v2.6.16-rc1
- v2.6.16
- v2.6.15-rc7
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- v2.6.15-rc5
- v2.6.15-rc4
- v2.6.15-rc3
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- v2.6.15
- v2.6.14-rc5
- v2.6.14-rc4
- v2.6.14-rc3
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- v2.6.14-rc1
- v2.6.14
- v2.6.13-rc7
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- v2.6.12-rc4
- v2.6.12-rc3
- v2.6.12-rc2
- v2.6.12
- v2.6.11-tree
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crypto: testmgr - Use heap buffer for acomp test input
File | Mode | Size |
---|---|---|
accounting | ||
arch | ||
build | ||
cgroup | ||
firewire | ||
gpio | ||
hv | ||
iio | ||
include | ||
kvm | ||
laptop | ||
leds | ||
lguest | ||
lib | ||
net | ||
nfsd | ||
objtool | ||
pcmcia | ||
perf | ||
power | ||
scripts | ||
spi | ||
testing | ||
thermal | ||
time | ||
usb | ||
virtio | ||
vm | ||
Makefile | -rw-r--r-- | 5.1 KB |
Computing file changes ...