Gustavo A. R. Silva 899537b735 net: atm: Fix potential Spectre v1 vulnerabilities ...

arg is controlled by user-space, hence leading to a potential
exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

net/atm/lec.c:715 lec_mcast_attach() warn: potential spectre issue 'dev_lec' [r] (local cap)

Fix this by sanitizing arg before using it to index dev_lec.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://lore.kernel.org/lkml/[email protected]/

Signed-off-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2019-04-16 21:01:45 -07:00

..

addr.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

addr.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

atm_misc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

atm_sysfs.c

net: Use octal not symbolic permissions

2018-03-26 12:07:48 -04:00

br2684.c

atm: Preserve value of skb->truesize when accounting to vcc

2018-06-17 08:27:01 +09:00

clip.c

atm: Preserve value of skb->truesize when accounting to vcc

2018-06-17 08:27:01 +09:00

common.c

Revert "net: simplify sock_poll_wait"

2018-10-23 10:57:06 -07:00

common.h

Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL

2018-06-28 10:40:47 -07:00

ioctl.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Kconfig

…

lec_arpc.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lec.c

net: atm: Fix potential Spectre v1 vulnerabilities

2019-04-16 21:01:45 -07:00

lec.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mpc.c

atm: Preserve value of skb->truesize when accounting to vcc

2018-06-17 08:27:01 +09:00

mpc.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mpoa_caches.c

atm: mpoa: remove 32-bit timekeeping

2017-11-30 09:26:32 -05:00

mpoa_caches.h

atm: mpoa: remove 32-bit timekeeping

2017-11-30 09:26:32 -05:00

mpoa_proc.c

atm: remove blank lines at EOF

2018-07-24 14:10:42 -07:00

pppoatm.c

atomics/treewide: Remove atomic_inc_not_zero_hint()

2018-06-21 14:22:33 +02:00

proc.c

atm: clean up vcc_seq_next()

2019-02-16 18:12:22 -08:00

protocols.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pvc.c

Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL

2018-06-28 10:40:47 -07:00

raw.c

atm: Preserve value of skb->truesize when accounting to vcc

2018-06-17 08:27:01 +09:00

resources.c

net: atm: Add another IS_ENABLED(CONFIG_COMPAT) in atm_dev_ioctl

2019-03-07 10:14:50 -08:00

resources.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

signaling.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

signaling.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

svc.c

Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL

2018-06-28 10:40:47 -07:00