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Fix 16-bit big-endian length parsing for SCSI VPD page 0x80

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This commit is contained in:
Andrea Mazzoleni 2026-08-16 15:43:34 +02:00
parent 463d858faf
commit 50d1389623
1 changed files with 3 additions and 4 deletions
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7
cmdline/unixapp.c
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@ -211,9 +211,8 @@ static ssize_t sysread(const char* path, char* buf, size_t buf_size)
#if HAVE_LINUX_DEVICE
/*
* sysread_vpd_pg83 — parse raw binary VPD page 0x83 (Device Identification)
* from a sysfs vpd_pg83 file and extract the first NAA (Network Address
* Authority) designator for the Logical Unit (ASSOCIATION == 0x00).
* sysattr_vpd_pg80 — parse raw binary VPD page 0x80 (Unit Serial Number)
* from a sysfs vpd_pg80 file.
*/
static int sysattr_vpd_pg80(const char* path, char* dst, size_t dst_size)
{
@ -235,7 +234,7 @@ static int sysattr_vpd_pg80(const char* path, char* dst, size_t dst_size)
}
/* clamp to what was actually read */
size_t page_len = buf[3];
size_t page_len = ((size_t)buf[2] << 8) | buf[3];
size_t available = (size_t)ret - 4;
if (available < page_len)
page_len = available;