An update of the linux package has been released.

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1780052998 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: can: isotp: fix potential CAN frame     reception race in isotp_rcv() When receiving a CAN frame the current code logic does not consider     concurrently receiving processes which do not show up in real world usage. Ziyang Xuan writes: The     following syz problem is one of the scenarios. so->rx.len is changed by isotp_rcv_ff() during     isotp_rcv_cf(), so->rx.len equals 0 before alloc_skb() and equals 4096 after alloc_skb(). That will     trigger skb_over_panic() in skb_put(). ======================================================= CPU: 1 PID:
    19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0 RIP: 0010:skb_panic+0x16c/0x16e     net/core/skbuff.c:113 Call Trace: <TASK> skb_over_panic net/core/skbuff.c:118 [inline]     skb_put.cold+0x24/0x24 net/core/skbuff.c:1990 isotp_rcv_cf net/can/isotp.c:570 [inline]     isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668 deliver net/can/af_can.c:574 [inline]     can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635 can_receive+0x31d/0x580 net/can/af_can.c:665     can_rcv+0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465
    __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579 Therefore we make sure the state changes and data     structures stay consistent at CAN frame reception time by adding a spin_lock in isotp_rcv(). This fixes     the issue reported by syzkaller but does not affect real world operation. (CVE-2022-48830)

  - In the Linux kernel, the following vulnerability has been resolved: ceph: fix deadlock or deadcode of     misusing dget() The lock order is incorrect between denty and its parent, we should always make sure that     the parent get the lock first. But since this deadcode is never used and the parent dir will always be set     from the callers, let's just remove it. (CVE-2023-52583)

  - In the Linux kernel, the following vulnerability has been resolved: trace_events_hist: add check for     return value of 'create_hist_field' Function 'create_hist_field' is called recursively at     trace_events_hist.c:1954 and can return NULL-value that's why we have to check it to avoid null pointer     dereference. Found by Linux Verification Center (linuxtesting.org) with SVACE. (CVE-2023-53005)

  - In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: fix percpu     counter block leak on error path when creating new netns Here is the stack where we allocate percpu     counter block: +-< __alloc_percpu +-< xt_percpu_counter_alloc +-< find_check_entry # {arp,ip,ip6}_tables.c     +-< translate_table And it can be leaked on this code path: +-> ip6t_register_table +-> translate_table #     allocates percpu counter block +-> xt_register_table # fails there is no freeing of the counter block on     xt_register_table fail. Note: xt_percpu_counter_free should be called to free it like we do in do_replace     through cleanup_entry helper (or in __ip6t_unregister_table). Probability of hitting this error path is     low AFAICS (xt_register_table can only return ENOMEM here, as it is not replacing anything, as we are     creating new netns, and it is hard to imagine that all previous allocations succeeded and after that one     in xt_register_table failed). But it's worth fixing even the rare leak. (CVE-2023-53200)

  - In the Linux kernel, the following vulnerability has been resolved: spi: imx: Don't skip cleanup in     remove's error path Returning early in a platform driver's remove callback is wrong. In this case the dma     resources are not released in the error path. this is never retried later and so this is a permanent leak.
    To fix this, only skip hardware disabling if waking the device fails. (CVE-2023-53225)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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

  - spi: spi-fsl-lpspi: fix teardown order issue (UAF) There is a teardown order issue in the driver. The SPI     controller is registered using devm_spi_register_controller(), which delays unregistration of the SPI     controller until after the fsl_lpspi_remove() function returns. As the fsl_lpspi_remove() function     synchronously tears down the DMA channels, a running SPI transfer triggers the following NULL pointer     dereference due to use after free: | fsl_lpspi 42550000.spi: I/O Error in DMA RX | Unable to handle kernel     NULL pointer dereference at virtual address 0000000000000000 [...] | Call trace: |     fsl_lpspi_dma_transfer+0x260/0x340 [spi_fsl_lpspi] | fsl_lpspi_transfer_one+0x198/0x448 [spi_fsl_lpspi] |     spi_transfer_one_message+0x49c/0x7c8 | __spi_pump_transfer_message+0x120/0x420 | __spi_sync+0x2c4/0x520 |     spi_sync+0x34/0x60 | spidev_message+0x20c/0x378 [spidev] | spidev_ioctl+0x398/0x750 [spidev] [...] Switch     from devm_spi_register_controller() to spi_register_controller() in fsl_lpspi_probe() and add the     corresponding spi_unregister_controller() in fsl_lpspi_remove(). (CVE-2026-31485)

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

ID	名前	製品	ファミリー	公開日	更新日	深刻度
313511	Photon OS 5.0: Linux PHSA-2026-5.0-0834	Nessus	PhotonOS Local Security Checks	2026/5/9	2026/10/14	high
351610	Rocky Linux 9.6 [TuxCare] Security Update: kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1780052998)	Nessus	Rocky Linux Local Security Checks	2026/9/30	2026/10/5	high
309759	Linux Distros Unpatched Vulnerability : CVE-2026-31485	Nessus	Misc.	2026/4/22	2026/9/22	high

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