mirror of https://github.com/torvalds/linux.git
c5082b70ad
If a GUID Partition Table claims to have more than 2**25 entries, the calculation of the partition table size in alloc_read_gpt_entries() will overflow a 32-bit integer and not enough space will be allocated for the table. Nothing seems to get written out of bounds, but later efi_partition() will read up to 32768 bytes from a 128 byte buffer, possibly OOPSing or exposing information to /proc/partitions and uevents. The problem exists on both 64-bit and 32-bit platforms. Fix the overflow and also print a meaningful debug message if the table size is too large. Signed-off-by: Alden Tondettar <alden.tondettar@gmail.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Jens Axboe <axboe@fb.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| acorn.c | ||
| acorn.h | ||
| aix.c | ||
| aix.h | ||
| amiga.c | ||
| amiga.h | ||
| atari.c | ||
| atari.h | ||
| check.c | ||
| check.h | ||
| cmdline.c | ||
| cmdline.h | ||
| efi.c | ||
| efi.h | ||
| ibm.c | ||
| ibm.h | ||
| karma.c | ||
| karma.h | ||
| ldm.c | ||
| ldm.h | ||
| mac.c | ||
| mac.h | ||
| msdos.c | ||
| msdos.h | ||
| osf.c | ||
| osf.h | ||
| sgi.c | ||
| sgi.h | ||
| sun.c | ||
| sun.h | ||
| sysv68.c | ||
| sysv68.h | ||
| ultrix.c | ||
| ultrix.h | ||