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  1. 24 Dec, 2023 6 commits
  3. 23 Dec, 2023 8 commits
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2023-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3f82f1c3
      Linus Torvalds authored 
      Pull x86 fixes from Ingo Molnar:

 - Fix a secondary CPUs enumeration regression caused by creative MADT
   APIC table entries on certain systems.

 - Fix a race in the NOP-patcher that can spuriously trigger crashes on
   bootup.

 - Fix a bootup failure regression caused by the parallel bringup code,
   caused by firmware inconsistency between the APIC initialization
   states of the boot and secondary CPUs, on certain systems.

* tag 'x86-urgent-2023-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/acpi: Handle bogus MADT APIC tables gracefully
  x86/alternatives: Disable interrupts and sync when optimizing NOPs in place
  x86/alternatives: Sync core before enabling interrupts
  x86/smpboot/64: Handle X2APIC BIOS inconsistency gracefully
      3f82f1c3
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · f969c914
      Linus Torvalds authored 
      Pull SCSI fixes from James Bottomley:
 "Four small fixes, three in drivers with the core one adding a batch
  indicator (for drivers which use it) to the error handler"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Let the sq_lock protect sq_tail_slot access
  scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify()
  scsi: core: Always send batch on reset or error handling command
  scsi: bnx2fc: Fix skb double free in bnx2fc_rcv()
      f969c914
    • Linus Torvalds's avatar
      Merge tag 'usb-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 4b2ee6d2
      Linus Torvalds authored 
      Pull USB / Thunderbolt fixes from Greg KH:
 "Here are some small bugfixes and new device ids for USB and
  Thunderbolt drivers for 6.7-rc7. Included in here are:

   - new usb-serial device ids

   - thunderbolt driver fixes

   - typec driver fix

   - usb-storage driver quirk added

   - fotg210 driver fix

  All of these have been in linux-next with no reported issues"

* tag 'usb-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: option: add Quectel EG912Y module support
  USB: serial: ftdi_sio: update Actisense PIDs constant names
  usb: fotg210-hcd: delete an incorrect bounds test
  usb-storage: Add quirk for incorrect WP on Kingston DT Ultimate 3.0 G3
  usb: typec: ucsi: fix gpio-based orientation detection
  net: usb: ax88179_178a: avoid failed operations when device is disconnected
  USB: serial: option: add Quectel RM500Q R13 firmware support
  USB: serial: option: add Foxconn T99W265 with new baseline
  thunderbolt: Fix minimum allocated USB 3.x and PCIe bandwidth
  thunderbolt: Fix memory leak in margining_port_remove()
      4b2ee6d2
    • Linus Torvalds's avatar
      Merge tag 'char-misc-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · a0652eb2
      Linus Torvalds authored 
      Pull char / misc driver fixes from Greg KH:
 "Here are a small number of various driver fixes for 6.7-rc7 that
  normally come through the char-misc tree, and one debugfs fix as well.

  Included in here are:

   - iio and hid sensor driver fixes for a number of small things

   - interconnect driver fixes

   - brcm_nvmem driver fixes

   - debugfs fix for previous fix

   - guard() definition in device.h so that many subsystems can start
     using it for 6.8-rc1 (requested by Dan Williams to make future
     merges easier)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  debugfs: initialize cancellations earlier
  Revert "iio: hid-sensor-als: Add light color temperature support"
  Revert "iio: hid-sensor-als: Add light chromaticity support"
  nvmem: brcm_nvram: store a copy of NVRAM content
  dt-bindings: nvmem: mxs-ocotp: Document fsl,ocotp
  driver core: Add a guard() definition for the device_lock()
  interconnect: qcom: icc-rpm: Fix peak rate calculation
  iio: adc: MCP3564: fix hardware identification logic
  iio: adc: MCP3564: fix calib_bias and calib_scale range checks
  iio: adc: meson: add separate config for axg SoC family
  iio: adc: imx93: add four channels for imx93 adc
  iio: adc: ti_am335x_adc: Fix return value check of tiadc_request_dma()
  interconnect: qcom: sm8250: Enable sync_state
  iio: triggered-buffer: prevent possible freeing of wrong buffer
  iio: imu: inv_mpu6050: fix an error code problem in inv_mpu6050_read_raw
  iio: imu: adis16475: use bit numbers in assign_bit()
  iio: imu: adis16475: add spi_device_id table
  iio: tmag5273: fix temperature offset
  interconnect: Treat xlate() returning NULL node as an error
  iio: common: ms_sensors: ms_sensors_i2c: fix humidity conversion time table
  ...
      a0652eb2
    • Linus Torvalds's avatar
      Merge tag 'input-for-v6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · fa655abe
      Linus Torvalds authored 
      Pull input updates from Dmitry Torokhov:

 - a quirk to AT keyboard driver to skip issuing "GET ID" command when
   8042 is in translated mode and the device is a laptop/portable,
   because the "GET ID" command makes a bunch of recent laptops unhappy

 - a quirk to i8042 to disable multiplexed mode on Acer P459-G2-M which
   causes issues on resume

 - psmouse will activate native RMI4 protocol support for touchpad on
   ThinkPad L14 G1

 - addition of Razer Wolverine V2 ID to xpad gamepad driver

 - mapping for airplane mode button in soc_button_array driver for
   TUXEDO laptops

 - improved error handling in ipaq-micro-keys driver

 - amimouse being prepared for platform remove callback returning void

* tag 'input-for-v6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: soc_button_array - add mapping for airplane mode button
  Input: xpad - add Razer Wolverine V2 support
  Input: ipaq-micro-keys - add error handling for devm_kmemdup
  Input: amimouse - convert to platform remove callback returning void
  Input: i8042 - add nomux quirk for Acer P459-G2-M
  Input: atkbd - skip ATKBD_CMD_GETID in translated mode
  Input: psmouse - enable Synaptics InterTouch for ThinkPad L14 G1
      fa655abe
    • Christoffer Sandberg's avatar
      Input: soc_button_array - add mapping for airplane mode button · ea371594
      Christoffer Sandberg authored 
      This add a mapping for the airplane mode button on the TUXEDO Pulse Gen3.

While it is physically a key it behaves more like a switch, sending a key
down on first press and a key up on 2nd press. Therefor the switch event
is used here. Besides this behaviour it uses the HID usage-id 0xc6
(Wireless Radio Button) and not 0xc8 (Wireless Radio Slider Switch), but
since neither 0xc6 nor 0xc8 are currently implemented at all in
soc_button_array this not to standard behaviour is not put behind a quirk
for the moment.
Signed-off-by: default avatarChristoffer Sandberg <cs@tuxedo.de>
Signed-off-by: default avatarWerner Sembach <wse@tuxedocomputers.com>
Link: https://lore.kernel.org/r/20231215171718.80229-1-wse@tuxedocomputers.com
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      ea371594
    • Linus Torvalds's avatar
      Merge tag 'block-6.7-2023-12-22' of git://git.kernel.dk/linux · 5254c0cb
      Linus Torvalds authored 
      Pull block fixes from Jens Axboe:
 "Just an NVMe pull request this time, with a fix for bad sleeping
  context, and a revert of a patch that caused some trouble"

* tag 'block-6.7-2023-12-22' of git://git.kernel.dk/linux:
  nvme-pci: fix sleeping function called from interrupt context
  Revert "nvme-fc: fix race between error recovery and creating association"
      5254c0cb
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 867583b3
      Linus Torvalds authored 
      Pull kvm fixes from Paolo Bonzini:
"RISC-V:

   - Fix a race condition in updating external interrupt for
     trap-n-emulated IMSIC swfile

   - Fix print_reg defaults in get-reg-list selftest

  ARM:

   - Ensure a vCPU's redistributor is unregistered from the MMIO bus if
     vCPU creation fails

   - Fix building KVM selftests for arm64 from the top-level Makefile

  x86:

   - Fix breakage for SEV-ES guests that use XSAVES

  Selftests:

   - Fix bad use of strcat(), by not using strcat() at all"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SEV: Do not intercept accesses to MSR_IA32_XSS for SEV-ES guests
  KVM: selftests: Fix dynamic generation of configuration names
  RISCV: KVM: update external interrupt atomically for IMSIC swfile
  KVM: riscv: selftests: Fix get-reg-list print_reg defaults
  KVM: selftests: Ensure sysreg-defs.h is generated at the expected path
  KVM: Convert comment into an assertion in kvm_io_bus_register_dev()
  KVM: arm64: vgic: Ensure that slots_lock is held in vgic_register_all_redist_iodevs()
  KVM: arm64: vgic: Force vcpu vgic teardown on vcpu destroy
  KVM: arm64: vgic: Add a non-locking primitive for kvm_vgic_vcpu_destroy()
  KVM: arm64: vgic: Simplify kvm_vgic_destroy()
      867583b3
  5. 22 Dec, 2023 14 commits
  7. 21 Dec, 2023 12 commits
    • Jens Axboe's avatar
      Merge tag 'nvme-6.7-2023-12-21' of git://git.infradead.org/nvme into block-6.7 · 13d822bf
      Jens Axboe authored 
      Pull NVMe fixes from Keith:

"nvme fixes for Linux 6.7

 - Revert a commit with improper sleep context (Keith)
 - Fix async event handling sleep context (Maurizio)"

* tag 'nvme-6.7-2023-12-21' of git://git.infradead.org/nvme:
  nvme-pci: fix sleeping function called from interrupt context
  Revert "nvme-fc: fix race between error recovery and creating association"
      13d822bf
    • David Howells's avatar
      afs: Fix use-after-free due to get/remove race in volume tree · 9a6b294a
      David Howells authored 
      When an afs_volume struct is put, its refcount is reduced to 0 before
the cell->volume_lock is taken and the volume removed from the
cell->volumes tree.

Unfortunately, this means that the lookup code can race and see a volume
with a zero ref in the tree, resulting in a use-after-free:

    refcount_t: addition on 0; use-after-free.
    WARNING: CPU: 3 PID: 130782 at lib/refcount.c:25 refcount_warn_saturate+0x7a/0xda
    ...
    RIP: 0010:refcount_warn_saturate+0x7a/0xda
    ...
    Call Trace:
     afs_get_volume+0x3d/0x55
     afs_create_volume+0x126/0x1de
     afs_validate_fc+0xfe/0x130
     afs_get_tree+0x20/0x2e5
     vfs_get_tree+0x1d/0xc9
     do_new_mount+0x13b/0x22e
     do_mount+0x5d/0x8a
     __do_sys_mount+0x100/0x12a
     do_syscall_64+0x3a/0x94
     entry_SYSCALL_64_after_hwframe+0x62/0x6a

Fix this by:

 (1) When putting, use a flag to indicate if the volume has been removed
     from the tree and skip the rb_erase if it has.

 (2) When looking up, use a conditional ref increment and if it fails
     because the refcount is 0, replace the node in the tree and set the
     removal flag.

Fixes: 20325960 ("afs: Reorganise volume and server trees to be rooted on the cell")
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Reviewed-by: default avatarJeffrey Altman <jaltman@auristor.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      9a6b294a
    • Matthew Wilcox (Oracle)'s avatar
      ida: Fix crash in ida_free when the bitmap is empty · af73483f
      Matthew Wilcox (Oracle) authored 
      The IDA usually detects double-frees, but that detection failed to
consider the case when there are no nearby IDs allocated and so we have a
NULL bitmap rather than simply having a clear bit.  Add some tests to the
test-suite to be sure we don't inadvertently reintroduce this problem.
Unfortunately they're quite noisy so include a message to disregard
the warnings.
Reported-by: default avatarZhenghan Wang <wzhmmmmm@gmail.com>
Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      af73483f
    • David Howells's avatar
      afs: Fix overwriting of result of DNS query · a9e01ac8
      David Howells authored 
      In afs_update_cell(), ret is the result of the DNS lookup and the errors
are to be handled by a switch - however, the value gets clobbered in
between by setting it to -ENOMEM in case afs_alloc_vlserver_list()
fails.

Fix this by moving the setting of -ENOMEM into the error handling for
OOM failure.  Further, only do it if we don't have an alternative error
to return.

Found by Linux Verification Center (linuxtesting.org) with SVACE.  Based
on a patch from Anastasia Belova [1].

Fixes: d5c32c89 ("afs: Fix cell DNS lookup")
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Reviewed-by: default avatarJeffrey Altman <jaltman@auristor.com>
cc: Anastasia Belova <abelova@astralinux.ru>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: lvc-project@linuxtesting.org
Link: https://lore.kernel.org/r/20231221085849.1463-1-abelova@astralinux.ru/ [1]
Link: https://lore.kernel.org/r/1700862.1703168632@warthog.procyon.org.uk/ # v1
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a9e01ac8
    • Linus Torvalds's avatar
      Merge tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · 937fd403
      Linus Torvalds authored 
      Pull AFS fixes from David Howells:
 "Improve the interaction of arbitrary lookups in the AFS dynamic root
  that hit DNS lookup failures [1] where kafs behaves differently from
  openafs and causes some applications to fail that aren't expecting
  that. Further, negative DNS results aren't getting removed and are
  causing failures to persist.

   - Always delete unused (particularly negative) dentries as soon as
     possible so that they don't prevent future lookups from retrying.

   - Fix the handling of new-style negative DNS lookups in ->lookup() to
     make them return ENOENT so that userspace doesn't get confused when
     stat succeeds but the following open on the looked up file then
     fails.

   - Fix key handling so that DNS lookup results are reclaimed almost as
     soon as they expire rather than sitting round either forever or for
     an additional 5 mins beyond a set expiry time returning
     EKEYEXPIRED. They persist for 1s as /bin/ls will do a second stat
     call if the first fails"

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637 [1]
Reviewed-by: default avatarJeffrey Altman <jaltman@auristor.com>

* tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry
  afs: Fix dynamic root lookup DNS check
  afs: Fix the dynamic root's d_delete to always delete unused dentries
      937fd403
    • Linus Torvalds's avatar
      Merge tag 'trace-v6.7-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace · 13b73446
      Linus Torvalds authored 
      Pull tracing fixes from Steven Rostedt:

 - Fix another kerneldoc warning

 - Fix eventfs files to inherit the ownership of its parent directory.

   The dynamic creation of dentries in eventfs did not take into account
   if the tracefs file system was mounted with a gid/uid, and would
   still default to the gid/uid of root. This is a regression.

 - Fix warning when synthetic event testing is enabled along with
   startup event tracing testing is enabled

* tag 'trace-v6.7-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing / synthetic: Disable events after testing in synth_event_gen_test_init()
  eventfs: Have event files and directories default to parent uid and gid
  tracing/synthetic: fix kernel-doc warnings
      13b73446
    • Linus Torvalds's avatar
      Merge tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 7c5e046b
      Linus Torvalds authored 
      Pull networking fixes from Paolo Abeni:
 "Including fixes from WiFi and bpf.

  Current release - regressions:

   - bpf: syzkaller found null ptr deref in unix_bpf proto add

   - eth: i40e: fix ST code value for clause 45

  Previous releases - regressions:

   - core: return error from sk_stream_wait_connect() if sk_wait_event()
     fails

   - ipv6: revert remove expired routes with a separated list of routes

   - wifi rfkill:
       - set GPIO direction
       - fix crash with WED rx support enabled

   - bluetooth:
       - fix deadlock in vhci_send_frame
       - fix use-after-free in bt_sock_recvmsg

   - eth: mlx5e: fix a race in command alloc flow

   - eth: ice: fix PF with enabled XDP going no-carrier after reset

   - eth: bnxt_en: do not map packet buffers twice

  Previous releases - always broken:

   - core:
       - check vlan filter feature in vlan_vids_add_by_dev() and
         vlan_vids_del_by_dev()
       - check dev->gso_max_size in gso_features_check()

   - mptcp: fix inconsistent state on fastopen race

   - phy: skip LED triggers on PHYs on SFP modules

   - eth: mlx5e:
       - fix double free of encap_header
       - fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()"

* tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
  net: check dev->gso_max_size in gso_features_check()
  kselftest: rtnetlink.sh: use grep_fail when expecting the cmd fail
  net/ipv6: Revert remove expired routes with a separated list of routes
  net: avoid build bug in skb extension length calculation
  net: ethernet: mtk_wed: fix possible NULL pointer dereference in mtk_wed_wo_queue_tx_clean()
  net: stmmac: fix incorrect flag check in timestamp interrupt
  selftests: add vlan hw filter tests
  net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()
  net: hns3: add new maintainer for the HNS3 ethernet driver
  net: mana: select PAGE_POOL
  net: ks8851: Fix TX stall caused by TX buffer overrun
  ice: Fix PF with enabled XDP going no-carrier after reset
  ice: alter feature support check for SRIOV and LAG
  ice: stop trashing VF VSI aggregator node ID information
  mailmap: add entries for Geliang Tang
  mptcp: fill in missing MODULE_DESCRIPTION()
  mptcp: fix inconsistent state on fastopen race
  selftests: mptcp: join: fix subflow_send_ack lookup
  net: phy: skip LED triggers on PHYs on SFP modules
  bpf: Add missing BPF_LINK_TYPE invocations
  ...
      7c5e046b
    • Alper Ak's avatar
      USB: serial: option: add Quectel EG912Y module support · 6d79d943
      Alper Ak authored 
      Add Quectel EG912Y "DIAG, AT, MODEM"

0x6001: ECM / RNDIS + DIAG + AT + MODEM

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=6001 Rev= 3.18
S:  Manufacturer=Android
S:  Product=Android
S:  SerialNumber=0000
C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=06 Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether
E:  Ad=87(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=89(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Signed-off-by: default avatarAlper Ak <alperyasinak1@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      6d79d943
    • Steven Rostedt (Google)'s avatar
      tracing / synthetic: Disable events after testing in synth_event_gen_test_init() · 88b30c7f
      Steven Rostedt (Google) authored 
      The synth_event_gen_test module can be built in, if someone wants to run
the tests at boot up and not have to load them.

The synth_event_gen_test_init() function creates and enables the synthetic
events and runs its tests.

The synth_event_gen_test_exit() disables the events it created and
destroys the events.

If the module is builtin, the events are never disabled. The issue is, the
events should be disable after the tests are run. This could be an issue
if the rest of the boot up tests are enabled, as they expect the events to
be in a known state before testing. That known state happens to be
disabled.

When CONFIG_SYNTH_EVENT_GEN_TEST=y and CONFIG_EVENT_TRACE_STARTUP_TEST=y
a warning will trigger:

 Running tests on trace events:
 Testing event create_synth_test:
 Enabled event during self test!
 ------------[ cut here ]------------
 WARNING: CPU: 2 PID: 1 at kernel/trace/trace_events.c:4150 event_trace_self_tests+0x1c2/0x480
 Modules linked in:
 CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-test-00031-gb803d7c6-dirty #276
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
 RIP: 0010:event_trace_self_tests+0x1c2/0x480
 Code: bb e8 a2 ab 5d fc 48 8d 7b 48 e8 f9 3d 99 fc 48 8b 73 48 40 f6 c6 01 0f 84 d6 fe ff ff 48 c7 c7 20 b6 ad bb e8 7f ab 5d fc 90 <0f> 0b 90 48 89 df e8 d3 3d 99 fc 48 8b 1b 4c 39 f3 0f 85 2c ff ff
 RSP: 0000:ffffc9000001fdc0 EFLAGS: 00010246
 RAX: 0000000000000029 RBX: ffff88810399ca80 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffffffffb9f19478 RDI: ffff88823c734e64
 RBP: ffff88810399f300 R08: 0000000000000000 R09: fffffbfff79eb32a
 R10: ffffffffbcf59957 R11: 0000000000000001 R12: ffff888104068090
 R13: ffffffffbc89f0a0 R14: ffffffffbc8a0f08 R15: 0000000000000078
 FS:  0000000000000000(0000) GS:ffff88823c700000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000000 CR3: 00000001f6282001 CR4: 0000000000170ef0
 Call Trace:
  <TASK>
  ? __warn+0xa5/0x200
  ? event_trace_self_tests+0x1c2/0x480
  ? report_bug+0x1f6/0x220
  ? handle_bug+0x6f/0x90
  ? exc_invalid_op+0x17/0x50
  ? asm_exc_invalid_op+0x1a/0x20
  ? tracer_preempt_on+0x78/0x1c0
  ? event_trace_self_tests+0x1c2/0x480
  ? __pfx_event_trace_self_tests_init+0x10/0x10
  event_trace_self_tests_init+0x27/0xe0
  do_one_initcall+0xd6/0x3c0
  ? __pfx_do_one_initcall+0x10/0x10
  ? kasan_set_track+0x25/0x30
  ? rcu_is_watching+0x38/0x60
  kernel_init_freeable+0x324/0x450
  ? __pfx_kernel_init+0x10/0x10
  kernel_init+0x1f/0x1e0
  ? _raw_spin_unlock_irq+0x33/0x50
  ret_from_fork+0x34/0x60
  ? __pfx_kernel_init+0x10/0x10
  ret_from_fork_asm+0x1b/0x30
  </TASK>

This is because the synth_event_gen_test_init() left the synthetic events
that it created enabled. By having it disable them after testing, the
other selftests will run fine.

Link: https://lore.kernel.org/linux-trace-kernel/20231220111525.2f0f49b0@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes: 9fe41efa ("tracing: Add synth event generation test module")
Acked-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: default avatarAlexander Graf <graf@amazon.com>
Tested-by: default avatarAlexander Graf <graf@amazon.com>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
      88b30c7f
    • Steven Rostedt (Google)'s avatar
      eventfs: Have event files and directories default to parent uid and gid · 0dfc852b
      Steven Rostedt (Google) authored 
      Dongliang reported:

  I found that in the latest version, the nodes of tracefs have been
  changed to dynamically created.

  This has caused me to encounter a problem where the gid I specified in
  the mounting parameters cannot apply to all files, as in the following
  situation:

  /data/tmp/events # mount | grep tracefs
  tracefs on /data/tmp type tracefs (rw,seclabel,relatime,gid=3012)

  gid 3012 = readtracefs

  /data/tmp # ls -lh
  total 0
  -r--r-----   1 root readtracefs 0 1970-01-01 08:00 README
  -r--r-----   1 root readtracefs 0 1970-01-01 08:00 available_events

  ums9621_1h10:/data/tmp/events # ls -lh
  total 0
  drwxr-xr-x 2 root root 0 2023-12-19 00:56 alarmtimer
  drwxr-xr-x 2 root root 0 2023-12-19 00:56 asoc

  It will prevent certain applications from accessing tracefs properly, I
  try to avoid this issue by making the following modifications.

To fix this, have the files created default to taking the ownership of
the parent dentry unless the ownership was previously set by the user.

Link: https://lore.kernel.org/linux-trace-kernel/1703063706-30539-1-git-send-email-dongliang.cui@unisoc.com/
Link: https://lore.kernel.org/linux-trace-kernel/20231220105017.1489d790@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Hongyu Jin  <hongyu.jin@unisoc.com>
Fixes: 28e12c09 ("eventfs: Save ownership and mode")
Acked-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: default avatarDongliang Cui <cuidongliang390@gmail.com>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
      0dfc852b
    • David Howells's avatar
      keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry · 39299bdd
      David Howells authored 
      If a key has an expiration time, then when that time passes, the key is
left around for a certain amount of time before being collected (5 mins by
default) so that EKEYEXPIRED can be returned instead of ENOKEY.  This is a
problem for DNS keys because we want to redo the DNS lookup immediately at
that point.

Fix this by allowing key types to be marked such that keys of that type
don't have this extra period, but are reclaimed as soon as they expire and
turn this on for dns_resolver-type keys.  To make this easier to handle,
key->expiry is changed to be permanent if TIME64_MAX rather than 0.

Furthermore, give such new-style negative DNS results a 1s default expiry
if no other expiry time is set rather than allowing it to stick around
indefinitely.  This shouldn't be zero as ls will follow a failing stat call
immediately with a second with AT_SYMLINK_NOFOLLOW added.

Fixes: 1a4240f4 ("DNS: Separate out CIFS DNS Resolver code")
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Tested-by: default avatarMarkus Suvanto <markus.suvanto@gmail.com>
cc: Wang Lei <wang840925@gmail.com>
cc: Jeff Layton <jlayton@redhat.com>
cc: Steve French <smfrench@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jarkko Sakkinen <jarkko@kernel.org>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: linux-cifs@vger.kernel.org
cc: linux-nfs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: keyrings@vger.kernel.org
cc: netdev@vger.kernel.org
      39299bdd
    • Paolo Abeni's avatar
      Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 74769d81
      Paolo Abeni authored 
      Daniel Borkmann says:

====================
pull-request: bpf 2023-12-21

Hi David, hi Jakub, hi Paolo, hi Eric,

The following pull-request contains BPF updates for your *net* tree.

We've added 3 non-merge commits during the last 5 day(s) which contain
a total of 4 files changed, 45 insertions(+).

The main changes are:

1) Fix a syzkaller splat which triggered an oob issue in bpf_link_show_fdinfo(),
   from Jiri Olsa.

2) Fix another syzkaller-found issue which triggered a NULL pointer dereference
   in BPF sockmap for unconnected unix sockets, from John Fastabend.

bpf-for-netdev

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Add missing BPF_LINK_TYPE invocations
  bpf: sockmap, test for unconnected af_unix sock
  bpf: syzkaller found null ptr deref in unix_bpf proto add
====================

Link: https://lore.kernel.org/r/20231221104844.1374-1-daniel@iogearbox.netSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      74769d81
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