In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/q54sj108a2) fix stack overflow in debugfs read The q54sj108a2_debugfs_read function suffers from a stack buffer overflow due to incorrect arguments passed to bin2hex(). The function currently passes 'data' as the destination and 'data_char' as the source. Because bin2hex() converts each input byte into two hex characters, a 32-byte block read results in 64 bytes of output. Since 'data' is only 34 bytes (I2C_SMBUS_BLOCK_MAX + 2), this writes 30 bytes past the end of the buffer onto the stack. Additionally, the arguments were swapped: it was reading from the zero-initialized 'data_char' and writing to 'data', resulting in all-zero output regardless of the actual I2C read. Fix this by: 1. Expanding 'data_char' to 66 bytes to safely hold the hex output. 2. Correcting the bin2hex() argument order and using the actual read count. 3. Using a pointer to select the correct output buffer for the final simple_read_from_buffer call.

photon_os PHSA-2026-5.0-92-0926: Unknown PhotonOS Security Updated

An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - hwmon: (pmbus/q54sj108a2) fix stack overflow in debugfs read The q54sj108a2_debugfs_read function suffers     from a stack buffer overflow due to incorrect arguments passed to bin2hex(). The function currently passes     'data' as the destination and 'data_char' as the source. Because bin2hex() converts each input byte into     two hex characters, a 32-byte block read results in 64 bytes of output. Since 'data' is only 34 bytes     (I2C_SMBUS_BLOCK_MAX + 2), this writes 30 bytes past the end of the buffer onto the stack. Additionally,     the arguments were swapped: it was reading from the zero-initialized 'data_char' and writing to 'data',     resulting in all-zero output regardless of the actual I2C read. Fix this by: 1. Expanding 'data_char' to     66 bytes to safely hold the hex output. 2. Correcting the bin2hex() argument order and using the actual     read count. 3. Using a pointer to select the correct output buffer for the final simple_read_from_buffer     call. (CVE-2026-43380)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
332421	Photon OS 5.0: Linux PHSA-2026-5.0-91-0842	Nessus	PhotonOS Local Security Checks	high
329326	Photon OS 5.0: Linux PHSA-2026-5.0-0926	Nessus	PhotonOS Local Security Checks	high
329149	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3166-1)	Nessus	SuSE Local Security Checks	medium
321210	Photon OS 5.0: Linux PHSA-2026-5.0-0837	Nessus	PhotonOS Local Security Checks	high
315719	Linux Distros Unpatched Vulnerability : CVE-2026-43380	Nessus	Misc.	high
313507	Photon OS 5.0: Linux PHSA-2026-5.0-0842	Nessus	PhotonOS Local Security Checks	high

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