In the Linux kernel, the following vulnerability has been resolved:
net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
Fix niu_try_msix() to not cause a fatal trap on sparc systems.
Set PCI_DEV_FLAGS_MSIX_TOUCH_ENTRY_DATA_FIRST on the struct pci_dev to work around a bug in the hardware or firmware.
For each vector entry in the msix table, niu chips will cause a fatal trap if any registers in that entry are read before that entries' ENTRY_DATA register is written to. Testing indicates writes to other registers are not sufficient to prevent the fatal trap, however the value does not appear to matter. This only needs to happen once after power up, so simply rebooting into a kernel lacking this fix will NOT cause the trap.
NON-RESUMABLE ERROR: Reporting on cpu 64 NON-RESUMABLE ERROR: TPC [0x00000000005f6900] <msix_prepare_msi_desc+0x90/0xa0> NON-RESUMABLE ERROR: RAW [4010000000000016:00000e37f93e32ff:0000000202000080:ffffffffffffffff NON-RESUMABLE ERROR: 0000000800000000:0000000000000000:0000000000000000:0000000000000000] NON-RESUMABLE ERROR: handle [0x4010000000000016] stick [0x00000e37f93e32ff] NON-RESUMABLE ERROR: type [precise nonresumable] NON-RESUMABLE ERROR: attrs [0x02000080] < ASI sp-faulted priv > NON-RESUMABLE ERROR: raddr [0xffffffffffffffff] NON-RESUMABLE ERROR: insn effective address [0x000000c50020000c] NON-RESUMABLE ERROR: size [0x8] NON-RESUMABLE ERROR: asi [0x00] CPU: 64 UID: 0 PID: 745 Comm: kworker/64:1 Not tainted 6.11.5 #63 Workqueue: events work_for_cpu_fn TSTATE: 0000000011001602 TPC: 00000000005f6900 TNPC: 00000000005f6904 Y: 00000000 Not tainted TPC: <msix_prepare_msi_desc+0x90/0xa0> g0: 00000000000002e9 g1: 000000000000000c g2: 000000c50020000c g3: 0000000000000100 g4: ffff8000470307c0 g5: ffff800fec5be000 g6: ffff800047a08000 g7: 0000000000000000 o0: ffff800014feb000 o1: ffff800047a0b620 o2: 0000000000000011 o3: ffff800047a0b620 o4: 0000000000000080 o5: 0000000000000011 sp: ffff800047a0ad51 ret_pc: 00000000005f7128 RPC: <__pci_enable_msix_range+0x3cc/0x460> l0: 000000000000000d l1: 000000000000c01f l2: ffff800014feb0a8 l3: 0000000000000020 l4: 000000000000c000 l5: 0000000000000001 l6: 0000000020000000 l7: ffff800047a0b734 i0: ffff800014feb000 i1: ffff800047a0b730 i2: 0000000000000001 i3: 000000000000000d i4: 0000000000000000 i5: 0000000000000000 i6: ffff800047a0ae81 i7: 00000000101888b0 I7: <niu_try_msix.constprop.0+0xc0/0x130 [niu]> Call Trace: [<00000000101888b0>] niu_try_msix.constprop.0+0xc0/0x130 [niu] [<000000001018f840>] niu_get_invariants+0x183c/0x207c [niu] [<00000000101902fc>] niu_pci_init_one+0x27c/0x2fc [niu] [<00000000005ef3e4>] local_pci_probe+0x28/0x74 [<0000000000469240>] work_for_cpu_fn+0x8/0x1c [<000000000046b008>] process_scheduled_works+0x144/0x210 [<000000000046b518>] worker_thread+0x13c/0x1c0 [<00000000004710e0>] kthread+0xb8/0xc8 [<00000000004060c8>] ret_from_fork+0x1c/0x2c [<0000000000000000>] 0x0 Kernel panic - not syncing: Non-resumable error.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxNo solution exists | May 15, 2025 | May 8, 2025 |
| Suse | — | Upgrade ocfs2-kmp-azureUpgrade kernel-sourceUpgrade dtb-rockchipUpgrade dtb-caviumUpgrade kselftests-kmp-64kbUpgrade kernel-azure-optionalUpgrade kernel-default-base-rebuildUpgrade kernel-rt-develUpgrade dtb-xilinxUpgrade dtb-lgUpgrade kernel-64kbUpgrade cluster-md-kmp-64kbUpgrade dtb-sprdUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-optionalUpgrade dtb-armUpgrade kernel-debug-develUpgrade kernel-default-optionalUpgrade dtb-renesasUpgrade kernel-64kb-develUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-symsUpgrade dtb-exynosUpgrade dtb-alteraUpgrade kernel-default-livepatch-develUpgrade kernel-develUpgrade reiserfs-kmp-defaultUpgrade kernel-64kb-extraUpgrade kernel-devel-rtUpgrade kernel-source-vanillaUpgrade kernel-debugUpgrade kernel-azureUpgrade kernel-rt_debug-develUpgrade dlm-kmp-rtUpgrade dtb-hisiliconUpgrade kernel-default-baseUpgrade kernel-source-azureUpgrade kernel-debug-vdsoUpgrade dtb-mediatekUpgrade dtb-allwinnerUpgrade gfs2-kmp-azureUpgrade dtb-qcomUpgrade cluster-md-kmp-rtUpgrade kernel-default-vdsoUpgrade ocfs2-kmp-defaultUpgrade kernel-zfcpdumpUpgrade ocfs2-kmp-rtUpgrade kselftests-kmp-rtUpgrade kernel-default-manUpgrade ocfs2-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade kernel-devel-azureUpgrade kernel-syms-rtUpgrade kernel-rt-vdsoUpgrade dtb-nvidiaUpgrade dtb-freescaleUpgrade dtb-amdUpgrade dtb-socionextUpgrade cluster-md-kmp-azureUpgrade kernel-source-rtUpgrade kernel-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmallUpgrade kernel-default-livepatchUpgrade kernel-azure-develUpgrade dtb-marvellUpgrade kernel-docsUpgrade gfs2-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade kernel-docs-htmlUpgrade kernel-azure-vdsoUpgrade dlm-kmp-defaultUpgrade dtb-apmUpgrade dtb-amazonUpgrade kernel-macrosUpgrade reiserfs-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-obs-qaUpgrade kernel-defaultUpgrade gfs2-kmp-rtUpgrade dlm-kmp-azureUpgrade kernel-syms-azureUpgrade kernel-rt_debugUpgrade kernel-rt-optionalUpgrade kernel-default-extraUpgrade kselftests-kmp-defaultUpgrade kselftests-kmp-azureUpgrade kernel-rt-extraUpgrade kernel-obs-buildUpgrade kernel-kvmsmall-develUpgrade kernel-default-develUpgrade kernel-azure-extraUpgrade dtb-broadcomUpgrade dtb-appleUpgrade dtb-amlogicUpgrade kernel-rt_debug-vdso | Dec 5, 2025 | Jun 12, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-oracleUpgrade linux-image-realtimeUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-awsUpgrade linux-image-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-aws-64kUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-gcp-64kUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-genericUpgrade linux-image-azureUpgrade linux-image-6.14.0-1007-awsUpgrade linux-image-raspiUpgrade linux-image-generic-64kUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-oracle-64k | Jun 26, 2025 | May 8, 2025 |
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