[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Changed in: kunpeng920/ubuntu-18.04 Status: Fix Committed => Fix Released ** Changed in: kunpeng920 Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
This bug was fixed in the package linux - 4.15.0-137.141 --- linux (4.15.0-137.141) bionic; urgency=medium * bionic/linux: 4.15.0-137.141 -proposed tracker (LP: #1916199) * Fix oops in skb_segment for Bionic series (LP: #1915552) - net: permit skb_segment on head_frag frag_list skb - net: bpf: add a test for skb_segment in test_bpf module - test_bpf: Fix NULL vs IS_ERR() check in test_skb_segment() * Bionic update: upstream stable patchset 2021-02-10 (LP: #1915328) - net: cdc_ncm: correct overhead in delayed_ndp_size - net: vlan: avoid leaks on register_vlan_dev() failures - net: ip: always refragment ip defragmented packets - net: fix pmtu check in nopmtudisc mode - x86/resctrl: Use an IPI instead of task_work_add() to update PQR_ASSOC MSR - x86/resctrl: Don't move a task to the same resource group - vmlinux.lds.h: Add PGO and AutoFDO input sections - drm/i915: Fix mismatch between misplaced vma check and vma insert - spi: pxa2xx: Fix use-after-free on unbind - iio: imu: st_lsm6dsx: flip irq return logic - iio: imu: st_lsm6dsx: fix edge-trigger interrupts - ARM: OMAP2+: omap_device: fix idling of devices during probe - i2c: sprd: use a specific timeout to avoid system hang up issue - cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get() - spi: stm32: FIFO threshold level - fix align packet size - dmaengine: xilinx_dma: check dma_async_device_register return value - dmaengine: xilinx_dma: fix mixed_enum_type coverity warning - wil6210: select CONFIG_CRC32 - block: rsxx: select CONFIG_CRC32 - iommu/intel: Fix memleak in intel_irq_remapping_alloc - net/mlx5e: Fix memleak in mlx5e_create_l2_table_groups - net/mlx5e: Fix two double free cases - wan: ds26522: select CONFIG_BITREVERSE - KVM: arm64: Don't access PMCR_EL0 when no PMU is available - block: fix use-after-free in disk_part_iter_next - net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet - net: hns3: fix the number of queues actually used by ARQ - net: stmmac: dwmac-sun8i: Balance internal PHY resource references - net: stmmac: dwmac-sun8i: Balance internal PHY power - net/sonic: Fix some resource leaks in error handling paths - net: ipv6: fib: flush exceptions when purging route - dmaengine: xilinx_dma: fix incompatible param warning in _child_probe() - lightnvm: select CONFIG_CRC32 - ASoC: dapm: remove widget from dirty list on free - MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB - MIPS: relocatable: fix possible boot hangup with KASLR enabled - ACPI: scan: Harden acpi_device_add() against device ID overflows - mm/hugetlb: fix potential missing huge page size info - dm snapshot: flush merged data before committing metadata - r8152: Add Lenovo Powered USB-C Travel Hub - ext4: fix bug for rename with RENAME_WHITEOUT - ARC: build: remove non-existing bootpImage from KBUILD_IMAGE - ARC: build: add uImage.lzma to the top-level target - ARC: build: add boot_targets to PHONY - btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan - ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram - arch/arc: add copy_user_page() to to fix build error on ARC - misdn: dsp: select CONFIG_BITREVERSE - net: ethernet: fs_enet: Add missing MODULE_LICENSE - ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI - ARM: picoxcell: fix missing interrupt-parent properties - dump_common_audit_data(): fix racy accesses to ->d_name - ASoC: Intel: fix error code cnl_set_dsp_D0() - NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock - pNFS: Mark layout for return if return-on-close was not sent - NFS: nfs_igrab_and_active must first reference the superblock - ext4: fix superblock checksum failure when setting password salt - RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp - mm, slub: consider rest of partial list if acquire_slab() fails - net: sunrpc: interpret the return value of kstrtou32 correctly - dm: eliminate potential source of excessive kernel log noise - ALSA: firewire-tascam: Fix integer overflow in midi_port_work() - ALSA: fireface: Fix integer overflow in transmit_midi_msg() - netfilter: conntrack: fix reading nf_conntrack_buckets - usb: ohci: Make distrust_firmware param default to false - nfsd4: readdirplus shouldn't return parent of export - netxen_nic: fix MSI/MSI-x interrupts - rndis_host: set proper input size for OID_GEN_PHYSICAL_MEDIUM request - esp: avoid unneeded kmap_atomic call - net: dcb: Validate netlink message in DCB handler - net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands - net: stmmac: Fixed mtu channged by cache aligned - net: sit: unregister_netdevice on
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
Regression test on d05, kunpeng920, crb1s and crb2s all passed. Thanks. ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Changed in: kunpeng920/ubuntu-18.04 Status: In Progress => Fix Committed ** Changed in: kunpeng920 Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Changed in: linux (Ubuntu Bionic) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Tags removed: tairadar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Description changed:
+ [Impact]
+ The SSBS patch in 4.14 stable kernel, and mainline kernel adds snippet
+ into arm64_cpufeatures but in bionic kernel, it is landed into
arm64_elf_hwcaps.
+
+ [Fix]
+ Move SSBS snippet from arm64_elf_hwcaps back to arm64_features
+
+ [Test]
+ No known tool for SSB attack. Regression test only.
+
+ [Regression Potential]
+ Regression might be on all arm64 platforms. Regression test on all arm64
platform we have is recommended.
+
+ =
[Bug Description]
ubuntu 18.04.1 fail to enable this SSBS function, this sys log will call
trace as follow:
-
- [0.662089] Call trace:
- [0.662870] setup_elf_hwcaps+0xb8/0xd4
- [0.664023] setup_cpu_features+0x60/0xf8
- [0.665216] smp_cpus_done+0x34/0xa8
- [0.666547] smp_init+0x120/0x138
- [0.667555] kernel_init_freeable+0xf4/0x260
- [0.668860] kernel_init+0x18/0x110
- [0.670025] ret_from_fork+0x10/0x18
-
+
+ [0.662089] Call trace:
+ [0.662870] setup_elf_hwcaps+0xb8/0xd4
+ [0.664023] setup_cpu_features+0x60/0xf8
+ [0.665216] smp_cpus_done+0x34/0xa8
+ [0.666547] smp_init+0x120/0x138
+ [0.667555] kernel_init_freeable+0xf4/0x260
+ [0.668860] kernel_init+0x18/0x110
+ [0.670025] ret_from_fork+0x10/0x18
[Steps to Reproduce]
1) boot this system
2) uname -a
Ubuntu 4.15.0-99.100-generic 4.15.18
+ [Actual Results]
+ boot error:
+ [0.662089] Call trace:
+ [0.662870] setup_elf_hwcaps+0xb8/0xd4
+ [0.664023] setup_cpu_features+0x60/0xf8
+ [0.665216] smp_cpus_done+0x34/0xa8
+ [0.666547] smp_init+0x120/0x138
+ [0.667555] kernel_init_freeable+0xf4/0x260
+ [0.668860] kernel_init+0x18/0x110
+ [0.670025] ret_from_fork+0x10/0x18
- [Actual Results]
- boot error:
- [0.662089] Call trace:
- [0.662870] setup_elf_hwcaps+0xb8/0xd4
- [0.664023] setup_cpu_features+0x60/0xf8
- [0.665216] smp_cpus_done+0x34/0xa8
- [0.666547] smp_init+0x120/0x138
- [0.667555] kernel_init_freeable+0xf4/0x260
- [0.668860] kernel_init+0x18/0x110
- [0.670025] ret_from_fork+0x10/0x18
-
[Expected Results]
no error
[Reproducibility]
NA
[Additional information]
(Firmware version, kernel version, affected hardware, etc. if required):
arm64: cpufeature: Detect SSBS and advertise to userspace
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d71be2b6c0e19180b5f80a6d42039cc074a693a2
backport this following code into "static const struct
arm64_cpu_capabilities arm64_elf_hwcaps[]" which will be error.
1274 #ifdef CONFIG_ARM64_SSBD
1275 {
1276 .desc = "Speculative Store Bypassing Safe (SSBS)",
1277 .capability = ARM64_SSBS,
1278 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
1279 .matches = has_cpuid_feature,
1280 .sys_reg = SYS_ID_AA64PFR1_EL1,
1281 .field_pos = ID_AA64PFR1_SSBS_SHIFT,
1282 .sign = FTR_UNSIGNED,
1283 .min_field_value = ID_AA64PFR1_SSBS_PSTATE_ONLY,
1284 .cpu_enable = cpu_enable_ssbs,
1285 },
[Resolution]
Can you backport aboving code into "static const struct
arm64_cpu_capabilities arm64_features[] = {"?
--
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https://bugs.launchpad.net/bugs/1911376
Title:
[ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and
advertise to userspace)
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[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
Hi, Could you test the kernel debs here? Thanks https://kernel.ubuntu.com/~ikepanhc/lp1911376.1/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1911376] Re: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace)
** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => In Progress ** Changed in: linux (Ubuntu Bionic) Status: New => In Progress ** Changed in: linux (Ubuntu) Status: In Progress => Invalid ** Changed in: linux (Ubuntu Bionic) Assignee: (unassigned) => Ike Panhc (ikepanhc) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911376 Title: [ssbs-0118] backport SSBS bug (arm64: cpufeature: Detect SSBS and advertise to userspace) To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1911376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
