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| author | Warner Losh <imp@FreeBSD.org> | 2018-10-26 22:49:25 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2018-10-26 22:49:25 +0000 |
| commit | 46fabdaffccbbc39faeb69e42d4a89bc1531e96c (patch) | |
| tree | f7fa4239f2ab79f7a459d924c566865f726302fc /usr.sbin | |
| parent | e08bb1091c785305ccf552e612019aa94ab1cc5b (diff) | |
| download | src-46fabdaffccbbc39faeb69e42d4a89bc1531e96c.tar.gz src-46fabdaffccbbc39faeb69e42d4a89bc1531e96c.zip | |
Require that we have at least a device path header before
trying to decode the next device path.
Sponsored by: Netflix, Inc
Notes
Notes:
svn path=/head/; revision=339798
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/efivar/efiutil.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/usr.sbin/efivar/efiutil.c b/usr.sbin/efivar/efiutil.c index 786a1c41d499..a7dfc2474b04 100644 --- a/usr.sbin/efivar/efiutil.c +++ b/usr.sbin/efivar/efiutil.c @@ -159,7 +159,7 @@ efi_print_load_option(uint8_t *data, size_t datalen, int Aflag, int bflag, int u ucs2_to_utf8(descr, &str); printf("%s", str); free(str); - while (dp < edp) { + while (dp < edp && (size_t)(edp - dp) > sizeof(efidp_header)) { efidp_format_device_path(buf, sizeof(buf), dp, (intptr_t)(void *)edp - (intptr_t)(void *)dp); dp = (efidp)((char *)dp + efidp_size(dp)); |