eee434d29e
[ Upstream commit ea443e5e98b5b74e317ef3d26bcaea54931ccdee ] board 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: drivers/atm/iphase.c:2765 ia_ioctl() warn: potential spectre issue 'ia_dev' [r] (local cap) drivers/atm/iphase.c:2774 ia_ioctl() warn: possible spectre second half. 'iadev' drivers/atm/iphase.c:2782 ia_ioctl() warn: possible spectre second half. 'iadev' drivers/atm/iphase.c:2816 ia_ioctl() warn: possible spectre second half. 'iadev' drivers/atm/iphase.c:2823 ia_ioctl() warn: possible spectre second half. 'iadev' drivers/atm/iphase.c:2830 ia_ioctl() warn: potential spectre issue '_ia_dev' [r] (local cap) drivers/atm/iphase.c:2845 ia_ioctl() warn: possible spectre second half. 'iadev' drivers/atm/iphase.c:2856 ia_ioctl() warn: possible spectre second half. 'iadev' Fix this by sanitizing board before using it to index ia_dev and _ia_dev 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/20180423164740.GY17484@dhcp22.suse.cz/ Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| .gitignore | ||
| adummy.c | ||
| ambassador.c | ||
| ambassador.h | ||
| atmtcp.c | ||
| eni.c | ||
| eni.h | ||
| firestream.c | ||
| firestream.h | ||
| fore200e.c | ||
| fore200e.h | ||
| he.c | ||
| he.h | ||
| horizon.c | ||
| horizon.h | ||
| idt77105.c | ||
| idt77105.h | ||
| idt77252.c | ||
| idt77252.h | ||
| idt77252_tables.h | ||
| iphase.c | ||
| iphase.h | ||
| Kconfig | ||
| lanai.c | ||
| Makefile | ||
| midway.h | ||
| nicstar.c | ||
| nicstar.h | ||
| nicstarmac.c | ||
| nicstarmac.copyright | ||
| solos-attrlist.c | ||
| solos-pci.c | ||
| suni.c | ||
| suni.h | ||
| tonga.h | ||
| uPD98401.h | ||
| uPD98402.c | ||
| uPD98402.h | ||
| zatm.c | ||
| zatm.h | ||
| zeprom.h | ||