https://github.com/torvalds/linux
An invalid packet with a length shorter than the specified length in the netlink header can lead to use-after-frees and slab-out-of-bounds in the processing of the netlink attributes, such as the following: BUG: KASAN: slab-out-of-bounds in __nla_validate_parse+0x1258/0x2010 Read of size 2 at addr ffff88800ac7952c by task kworker/0:1/12 Workqueue: events hwsim_virtio_rx_work Call Trace: <TASK> dump_stack_lvl+0x45/0x5d print_report.cold+0x5e/0x5e5 kasan_report+0xb1/0x1c0 __nla_validate_parse+0x1258/0x2010 __nla_parse+0x22/0x30 hwsim_virtio_handle_cmd.isra.0+0x13f/0x2d0 hwsim_virtio_rx_work+0x1b2/0x370 process_one_work+0x8df/0x1530 worker_thread+0x575/0x11a0 kthread+0x29d/0x340 ret_from_fork+0x22/0x30 </TASK> Discarding packets with an invalid length solves this. Therefore, skb->len must be set at reception. Change-Id: Ieaeb9a4c62d3beede274881a7c2722c6c6f477b6 Signed-off-by: Soenke Huster <soenke.huster@eknoes.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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- v2.6.21-rc4
- v2.6.21-rc3
- v2.6.21-rc2
- v2.6.21-rc1
- v2.6.21
- v2.6.20-rc7
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- v2.6.19-rc2
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- v2.6.19
- v2.6.18-rc7
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- 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
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- v2.6.16-rc2
- v2.6.16-rc1
- v2.6.16
- v2.6.15-rc7
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- v2.6.15
- v2.6.14-rc5
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- v2.6.14
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- v2.6.12
- v2.6.11-tree
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wifi: mac80211_hwsim: check length for virtio packets
File | Mode | Size |
---|---|---|
Documentation | ||
LICENSES | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | -rw-r--r-- | 19.9 KB |
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 151 bytes |
.gitattributes | -rw-r--r-- | 62 bytes |
.gitignore | -rw-r--r-- | 1.9 KB |
.mailmap | -rw-r--r-- | 23.5 KB |
COPYING | -rw-r--r-- | 496 bytes |
CREDITS | -rw-r--r-- | 99.1 KB |
Kbuild | -rw-r--r-- | 1.3 KB |
Kconfig | -rw-r--r-- | 555 bytes |
MAINTAINERS | -rw-r--r-- | 663.5 KB |
Makefile | -rw-r--r-- | 64.5 KB |
README | -rw-r--r-- | 727 bytes |
Computing file changes ...