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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-10-15 18:20:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-10-15 18:20:07 +0200 |
| commit | 37b238da15a87a0be1cdda09e4aa8a5bc2b4d759 (patch) | |
| tree | a5085061cde85cb8f231458c0746876e96b83b39 /drivers/firmware | |
| parent | Merge branch 'akpm' (patches from Andrew) (diff) | |
| parent | firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices (diff) | |
| download | linux-37b238da15a87a0be1cdda09e4aa8a5bc2b4d759.tar.xz linux-37b238da15a87a0be1cdda09e4aa8a5bc2b4d759.zip | |
Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi fix from Jean Delvare.
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 35ed56b9c34f..1e21fc3e9851 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -408,7 +408,7 @@ static void __init save_mem_devices(const struct dmi_header *dm, void *v) bytes = ~0ull; else if (size & 0x8000) bytes = (u64)(size & 0x7fff) << 10; - else if (size != 0x7fff) + else if (size != 0x7fff || dm->length < 0x20) bytes = (u64)size << 20; else bytes = (u64)get_unaligned((u32 *)&d[0x1C]) << 20; |