coja/lbmk
1
0
Fork 0
mirror of https://codeberg.org/libreboot/lbmk.git synced 2026-07-11 05:52:36 +02:00
Code Issues Packages Projects Releases Wiki Activity

util/nvmutil: stricter i/o errors

Browse Source 
Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-13 14:25:31 +00:00
parent 0c9bcaaba8
commit 7836a2bbc6
1 changed files with 10 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
util/nvmutil/nvmutil.c
+10 -6
View File
@@ -1604,10 +1604,11 @@ rw_file_once(int fd, uint8_t *mem, size_t len,
size_t retries_on_zero = 0;
size_t max_retries = 10;
read_again:
if ((unsigned int)rw_type > IO_PWRITE)
if (fd < 0 || !len || len > (size_t)SSIZE_MAX
|| (unsigned int)rw_type > IO_PWRITE)
goto err_rw_file_once;
read_again:
rv = do_rw(fd, mem + rc, len - rc, off + rc, rw_type);
if (rv < 0 && errno == EINTR)
@@ -1668,10 +1669,9 @@ prw(int fd, void *mem, size_t nrw,
prw_type = rw_type ^ IO_PREAD;
if ((unsigned int)prw_type > IO_WRITE) {
errno = EIO;
return -1;
}
if (fd < 0 || !nrw || nrw > (size_t)SSIZE_MAX
|| (unsigned int)prw_type > IO_WRITE)
goto err_prw;
if ((off_orig = lseek_eintr(fd, (off_t)0, SEEK_CUR)) == (off_t)-1)
return -1;
@@ -1691,6 +1691,10 @@ prw(int fd, void *mem, size_t nrw,
errno = saved_errno;
return r;
err_prw:
errno = EIO;
return -1;
}
static off_t