13 Nov, 2020
2 commits
-
…cm/fs/fscrypt/fscrypt") into android-mainline
Steps on the way to 5.10-rc4
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8554ba37704bee02192ff6117d4909fde568fca2 -
Pull networking fixes from Jakub Kicinski:
"Current release - regressions:- arm64: dts: fsl-ls1028a-kontron-sl28: specify in-band mode for
ENETCCurrent release - bugs in new features:
- mptcp: provide rmem[0] limit offset to fix oops
Previous release - regressions:
- IPv6: Set SIT tunnel hard_header_len to zero to fix path MTU
calculations- lan743x: correctly handle chips with internal PHY
- bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE
- mlx5e: Fix VXLAN port table synchronization after function reload
Previous release - always broken:
- bpf: Zero-fill re-used per-cpu map element
- fix out-of-order UDP packets when forwarding with UDP GSO fraglists
turned on:
- fix UDP header access on Fast/frag0 UDP GRO
- fix IP header access and skb lookup on Fast/frag0 UDP GRO- ethtool: netlink: add missing netdev_features_change() call
- net: Update window_clamp if SOCK_RCVBUF is set
- igc: Fix returning wrong statistics
- ch_ktls: fix multiple leaks and corner cases in Chelsio TLS offload
- tunnels: Fix off-by-one in lower MTU bounds for ICMP/ICMPv6 replies
- r8169: disable hw csum for short packets on all chip versions
- vrf: Fix fast path output packet handling with async Netfilter
rules"* tag 'net-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
lan743x: fix use of uninitialized variable
net: udp: fix IP header access and skb lookup on Fast/frag0 UDP GRO
net: udp: fix UDP header access on Fast/frag0 UDP GRO
devlink: Avoid overwriting port attributes of registered port
vrf: Fix fast path output packet handling with async Netfilter rules
cosa: Add missing kfree in error path of cosa_write
net: switch to the kernel.org patchwork instance
ch_ktls: stop the txq if reaches threshold
ch_ktls: tcb update fails sometimes
ch_ktls/cxgb4: handle partial tag alone SKBs
ch_ktls: don't free skb before sending FIN
ch_ktls: packet handling prior to start marker
ch_ktls: Correction in middle record handling
ch_ktls: missing handling of header alone
ch_ktls: Correction in trimmed_len calculation
cxgb4/ch_ktls: creating skbs causes panic
ch_ktls: Update cheksum information
ch_ktls: Correction in finding correct length
cxgb4/ch_ktls: decrypted bit is not enough
net/x25: Fix null-ptr-deref in x25_connect
...
12 Nov, 2020
1 commit
-
…kernel/git/viro/vfs") into android-mainline
Steps on the way to 5.10-rc4
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9e0fa89c0f6f306fe802ae95c8d01d9ba558e111
11 Nov, 2020
3 commits
-
Iproute2 tc classifier terse dump has been accepted with modified syntax.
Update the tests accordingly.Signed-off-by: Vlad Buslov
Fixes: e7534fd42a99 ("selftests: implement flower classifier terse dump tests")
Link: https://lore.kernel.org/r/20201107111928.453534-1-vlad@buslov.dev
Signed-off-by: Jakub Kicinski -
Pull turbostat updates from Len Brown:
"Update update to version 20.09.30, one kernel side fix"* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: update version number
powercap: restrict energy meter to root access
tools/power turbostat: harden against cpu hotplug
tools/power turbostat: adjust for temperature offset
tools/power turbostat: Build with _FILE_OFFSET_BITS=64
tools/power turbostat: Support AMD Family 19h
tools/power turbostat: Remove empty columns for Jacobsville
tools/power turbostat: Add a new GFXAMHz column that exposes gt_act_freq_mhz.
tools/power x86_energy_perf_policy: Input/output error in a VM
tools/power turbostat: Skip pc8, pc9, pc10 columns, if they are disabled
tools/power turbostat: Support additional CPU model numbers
tools/power turbostat: Fix output formatting for ACPI CST enumeration
tools/power turbostat: Replace HTTP links with HTTPS ones: TURBOSTAT UTILITY
tools/power turbostat: Use sched_getcpu() instead of hardcoded cpu 0
tools/power turbostat: Enable accumulate RAPL display
tools/power turbostat: Introduce functions to accumulate RAPL consumption
tools/power turbostat: Make the energy variable to be 64 bit
tools/power turbostat: Always print idle in the system configuration header
tools/power turbostat: Print /dev/cpu_dma_latency -
goodbye summer...
Signed-off-by: Len Brown
10 Nov, 2020
1 commit
-
Pull kvm fixes from Paolo Bonzini:
"ARM:
- fix compilation error when PMD and PUD are folded
- fix regression in reads-as-zero behaviour of ID_AA64ZFR0_EL1
- add aarch64 get-reg-list testx86:
- fix semantic conflict between two series merged for 5.10
- fix (and test) enforcement of paravirtual cpuid featuresselftests:
- various cleanups to memory management selftests
- new selftests testcase for performance of dirty logging"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
KVM: selftests: allow two iterations of dirty_log_perf_test
KVM: selftests: Introduce the dirty log perf test
KVM: selftests: Make the number of vcpus global
KVM: selftests: Make the per vcpu memory size global
KVM: selftests: Drop pointless vm_create wrapper
KVM: selftests: Add wrfract to common guest code
KVM: selftests: Simplify demand_paging_test with timespec_diff_now
KVM: selftests: Remove address rounding in guest code
KVM: selftests: Factor code out of demand_paging_test
KVM: selftests: Use a single binary for dirty/clear log test
KVM: selftests: Always clear dirty bitmap after iteration
KVM: selftests: Add blessed SVE registers to get-reg-list
KVM: selftests: Add aarch64 get-reg-list test
selftests: kvm: test enforcement of paravirtual cpuid features
selftests: kvm: Add exception handling to selftests
selftests: kvm: Clear uc so UCALL_NONE is being properly reported
selftests: kvm: Fix the segment descriptor layout to match the actual layout
KVM: x86: handle MSR_IA32_DEBUGCTLMSR with report_ignored_msrs
kvm: x86: request masterclock update any time guest uses different msr
kvm: x86: ensure pv_cpuid.features is initialized when enabling cap
...
09 Nov, 2020
2 commits
-
Even though one iteration is not enough for the dirty log performance
test (due to the cost of building page tables, zeroing memory etc.)
two is okay and it is the default. Without this patch,
"./dirty_log_perf_test" without any further arguments fails.Cc: Ben Gardon
Signed-off-by: Paolo Bonzini -
Linux 5.10-rc3
Signed-off-by: Greg Kroah-Hartman
Change-Id: I7884051ea7b86204b2685b51462368e122ad0772
08 Nov, 2020
16 commits
-
The dirty log perf test will time verious dirty logging operations
(enabling dirty logging, dirtying memory, getting the dirty log,
clearing the dirty log, and disabling dirty logging) in order to
quantify dirty logging performance. This test can be used to inform
future performance improvements to KVM's dirty logging infrastructure.This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.Signed-off-by: Ben Gardon
Message-Id:
Signed-off-by: Paolo Bonzini -
We also check the input number of vcpus against the maximum supported.
Signed-off-by: Andrew Jones
Message-Id:
Signed-off-by: Paolo Bonzini -
Rename vcpu_memory_bytes to something with "percpu" in it
in order to be less ambiguous. Also make it global to
simplify things.Signed-off-by: Andrew Jones
Message-Id:
Signed-off-by: Paolo Bonzini -
Signed-off-by: Andrew Jones
Message-Id:
Signed-off-by: Paolo Bonzini -
Wrfract will be used by the dirty logging perf test introduced later in
this series to dirty memory sparsely.This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.Signed-off-by: Ben Gardon
Message-Id:
Signed-off-by: Paolo Bonzini -
Add a helper function to get the current time and return the time since
a given start time. Use that function to simplify the timekeeping in the
demand paging test.This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.Signed-off-by: Ben Gardon
Message-Id:
Signed-off-by: Paolo Bonzini -
Rounding the address the guest writes to a host page boundary
will only have an effect if the host page size is larger than the guest
page size, but in that case the guest write would still go to the same
host page. There's no reason to round the address down, so remove the
rounding to simplify the demand paging test.This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.Signed-off-by: Ben Gardon
Message-Id:
Signed-off-by: Paolo Bonzini -
Much of the code in demand_paging_test can be reused by other, similar
multi-vCPU-memory-touching-perfromance-tests. Factor that common code
out for reuse.No functional change expected.
This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.Signed-off-by: Ben Gardon
Message-Id:
Signed-off-by: Paolo Bonzini -
Remove the clear_dirty_log test, instead merge it into the existing
dirty_log_test. It should be cleaner to use this single binary to do
both tests, also it's a preparation for the upcoming dirty ring test.The default behavior will run all the modes in sequence.
Reviewed-by: Andrew Jones
Signed-off-by: Peter Xu
Message-Id:
Signed-off-by: Paolo Bonzini -
We used not to clear the dirty bitmap before because KVM_GET_DIRTY_LOG
would overwrite it the next time it copies the dirty log onto it.
In the upcoming dirty ring tests we'll start to fetch dirty pages from
a ring buffer, so no one is going to clear the dirty bitmap for us.Reviewed-by: Andrew Jones
Signed-off-by: Peter Xu
Message-Id:
Signed-off-by: Paolo Bonzini -
Add support for the SVE registers to get-reg-list and create a
new test, get-reg-list-sve, which tests them when running on a
machine with SVE support.Signed-off-by: Andrew Jones
Message-Id:
Signed-off-by: Paolo Bonzini -
Check for KVM_GET_REG_LIST regressions. The blessed list was
created by running on v4.15 with the --core-reg-fixup option.
The following script was also used in order to annotate system
registers with their names when possible. When new system
registers are added the names can just be added manually using
the same grep.while read reg; do
if [[ ! $reg =~ ARM64_SYS_REG ]]; then
printf "\t$reg\n"
continue
fi
encoding=$(echo "$reg" | sed "s/ARM64_SYS_REG(//;s/),//")
if ! name=$(grep "$encoding" ../../../../arch/arm64/include/asm/sysreg.h); then
printf "\t$reg\n"
continue
fi
name=$(echo "$name" | sed "s/.*SYS_//;s/[\t ]*sys_reg($encoding)$//")
printf "\t$reg\t/* $name */\n"
done <
Message-Id:
Signed-off-by: Paolo Bonzini -
Add a set of tests that ensure the guest cannot access paravirtual msrs
and hypercalls that have been disabled in the KVM_CPUID_FEATURES leaf.
Expect a #GP in the case of msr accesses and -KVM_ENOSYS from
hypercalls.Cc: Jim Mattson
Signed-off-by: Oliver Upton
Reviewed-by: Peter Shier
Reviewed-by: Aaron Lewis
Message-Id:
Signed-off-by: Paolo Bonzini -
Add the infrastructure needed to enable exception handling in selftests.
This allows any of the exception and interrupt vectors to be overridden
in the guest.Signed-off-by: Aaron Lewis
Reviewed-by: Alexander Graf
Message-Id:
Signed-off-by: Paolo Bonzini -
Ensure the out value 'uc' in get_ucall() is properly reporting
UCALL_NONE if the call fails. The return value will be correctly
reported, however, the out parameter 'uc' will not be. Clear the struct
to ensure the correct value is being reported in the out parameter.Signed-off-by: Aaron Lewis
Reviewed-by: Andrew Jones
Reviewed-by: Alexander Graf
Message-Id:
Signed-off-by: Paolo Bonzini -
Fix the layout of 'struct desc64' to match the layout described in the
SDM Vol 3, Chapter 3 "Protected-Mode Memory Management", section 3.4.5
"Segment Descriptors", Figure 3-8 "Segment Descriptor". The test added
later in this series relies on this and crashes if this layout is not
correct.Signed-off-by: Aaron Lewis
Reviewed-by: Alexander Graf
Message-Id:
Signed-off-by: Paolo Bonzini
07 Nov, 2020
3 commits
-
Alexei Starovoitov says:
====================
pull-request: bpf 2020-11-061) Pre-allocated per-cpu hashmap needs to zero-fill reused element, from David.
2) Tighten bpf_lsm function check, from KP.
3) Fix bpftool attaching to flow dissector, from Lorenz.
4) Use -fno-gcse for the whole kernel/bpf/core.c instead of function attribute, from Ard.
* git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Update verification logic for LSM programs
bpf: Zero-fill re-used per-cpu map element
bpf: BPF_PRELOAD depends on BPF_SYSCALL
tools/bpftool: Fix attaching flow dissector
libbpf: Fix possible use after free in xsk_socket__delete
libbpf: Fix null dereference in xsk_socket__delete
libbpf, hashmap: Fix undefined behavior in hash_bits
bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE
tools, bpftool: Remove two unused variables.
tools, bpftool: Avoid array index warnings.
xsk: Fix possible memory leak at socket close
bpf: Add struct bpf_redir_neigh forward declaration to BPF helper defs
samples/bpf: Set rlimit for memlock to infinity in all samples
bpf: Fix -Wshadow warnings
selftest/bpf: Fix profiler test using CO-RE relocation for enums
====================Link: https://lore.kernel.org/r/20201106221759.24143-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski -
…/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Fixes to the ftrace test and several fixes from Tommi Rantala for
various other tests"* tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: binderfs: use SKIP instead of XFAIL
selftests: clone3: use SKIP instead of XFAIL
selftests: core: use SKIP instead of XFAIL in close_range_test.c
selftests: proc: fix warning: _GNU_SOURCE redefined
selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c
selftests: pidfd: add CONFIG_CHECKPOINT_RESTORE=y to config
selftests: pidfd: skip test on kcmp() ENOSYS
selftests: pidfd: use ksft_test_result_skip() when skipping test
selftests/harness: prettify SKIP message whitespace again
selftests: pidfd: fix compilation errors due to wait.h
selftests: filter kselftest headers from command in lib.mk
selftests/ftrace: check for do_sys_openat2 in user-memory test
selftests/ftrace: Use $FUNCTION_FORK to reference kernel fork function -
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.10-rc3, including fixes from wireless, can, and
netfilter subtrees.Current merge window - bugs in new features:
- can: isotp: isotp_rcv_cf(): enable RX timeout handling in
listen-only modePrevious releases - regressions:
- mac80211:
- don't require VHT elements for HE on 2.4 GHz
- fix regression where EAPOL frames were sent in plaintext- netfilter:
- ipset: Update byte and packet counters regardless of whether
they match- ip_tunnel: fix over-mtu packet send by allowing fragmenting even if
inner packet has IP_DF (don't fragment) set in its header (when
TUNNEL_DONT_FRAGMENT flag is not set on the tunnel dev)- net: fec: fix MDIO probing for some FEC hardware blocks
- ip6_tunnel: set inner ipproto before ip6_tnl_encap to un-break gso
support- sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian
platforms, sparse-related fix used the wrong integer sizePrevious releases - always broken:
- netfilter: use actual socket sk rather than skb sk when routing
harder- r8169: work around short packet hw bug on RTL8125 by padding frames
- net: ethernet: ti: cpsw: disable PTPv1 hw timestamping
advertisement, the hardware does not support it- chelsio/chtls: fix always leaking ctrl_skb and another leak caused
by a race condition- fix drivers incorrectly writing into skbs on TX:
- cadence: force nonlinear buffers to be cloned
- gianfar: Account for Tx PTP timestamp in the skb headroom
- gianfar: Replace skb_realloc_headroom with skb_cow_head for PTP- can: flexcan:
- remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A
- add ECC initialization for VF610 and LX2160A
- flexcan_remove(): disable wakeup completely- can: fix packet echo functionality:
- peak_canfd: fix echo management when loopback is on
- make sure skbs are not freed in IRQ context in case they need to
be dropped
- always clone the skbs to make sure they have a reference on the
socket, and prevent it from disappearing
- fix real payload length return value for RTR frames- can: j1939: return failure on bind if netdev is down, rather than
waiting indefinitelyMisc:
- IPv6: reply ICMP error if the first fragment don't include all
headers to improve compliance with RFC 8200"* tag 'net-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (66 commits)
ionic: check port ptr before use
r8169: work around short packet hw bug on RTL8125
net: openvswitch: silence suspicious RCU usage warning
chelsio/chtls: fix always leaking ctrl_skb
chelsio/chtls: fix memory leaks caused by a race
can: flexcan: flexcan_remove(): disable wakeup completely
can: flexcan: add ECC initialization for VF610
can: flexcan: add ECC initialization for LX2160A
can: flexcan: remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A
can: mcp251xfd: remove unneeded break
can: mcp251xfd: mcp251xfd_regmap_nocrc_read(): fix semicolon.cocci warnings
can: mcp251xfd: mcp251xfd_regmap_crc_read(): increase severity of CRC read error messages
can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on
can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping
can: peak_usb: add range checking in decode operations
can: xilinx_can: handle failure cases of pm_runtime_get_sync
can: ti_hecc: ti_hecc_probe(): add missed clk_disable_unprepare() in error path
can: isotp: padlen(): make const array static, makes object smaller
can: isotp: isotp_rcv_cf(): enable RX timeout handling in listen-only mode
can: isotp: Explain PDU in CAN_ISOTP help text
...
06 Nov, 2020
10 commits
-
…it.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest") into android-mainline
Steps on the way to 5.10-rc3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I57f80255bf5d396e92a54807a516cc41cf07be61 -
…rnel.org/pub/scm/linux/kernel/git/acme/linux") into android-mainline
Steps on the way to 5.10-rc3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia09418a96a25f6c602af953db5d3258e032c0f30 -
Zero-fill element values for all other cpus than current, just as
when not using prealloc. This is the only way the bpf program can
ensure known initial values for all cpus ('onallcpus' cannot be
set when coming from the bpf program).The scenario is: bpf program inserts some elements in a per-cpu
map, then deletes some (or userspace does). When later adding
new elements using bpf_map_update_elem(), the bpf program can
only set the value of the new elements for the current cpu.
When prealloc is enabled, previously deleted elements are re-used.
Without the fix, values for other cpus remain whatever they were
when the re-used entry was previously freed.A selftest is added to validate correct operation in above
scenario as well as in case of LRU per-cpu map element re-use.Fixes: 6c9059817432 ("bpf: pre-allocate hash map elements")
Signed-off-by: David Verbeiren
Signed-off-by: Alexei Starovoitov
Acked-by: Matthieu Baerts
Acked-by: Andrii Nakryiko
Link: https://lore.kernel.org/bpf/20201104112332.15191-1-david.verbeiren@tessares.net -
My earlier patch to reject non-zero arguments to flow dissector attach
broke attaching via bpftool. Instead of 0 it uses -1 for target_fd.
Fix this by passing a zero argument when attaching the flow dissector.Fixes: 1b514239e859 ("bpf: flow_dissector: Check value of unused flags to BPF_PROG_ATTACH")
Reported-by: Jiri Benc
Signed-off-by: Lorenz Bauer
Signed-off-by: Alexei Starovoitov
Acked-by: Song Liu
Link: https://lore.kernel.org/bpf/20201105115230.296657-1-lmb@cloudflare.com -
Bug: 160634783
Test: incfs_test passes
Signed-off-by: Paul Lawrence
Change-Id: Iba28b535d2d5183859ffc721204b036434132d9b -
…/linux/kernel/git/shuah/linux-kselftest
Pull Kunit fixes from Shuah Khan:
"Several kunit_tool and documentation fixes"* tag 'linux-kselftest-kunit-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tools: fix kunit_tool tests for parsing test plans
Documentation: kunit: Update Kconfig parts for KUNIT's module support
kunit: test: fix remaining kernel-doc warnings
kunit: Don't fail test suites if one of them is empty
kunit: Fix kunit.py --raw_output option -
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala
Reviewed-by: Kees Cook
Acked-by: Christian Brauner
Signed-off-by: Shuah Khan -
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala
Reviewed-by: Kees Cook
Acked-by: Christian Brauner
Signed-off-by: Shuah Khan -
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL
into SKIP"), use SKIP instead.Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP")
Signed-off-by: Tommi Rantala
Reviewed-by: Kees Cook
Acked-by: Christian Brauner
Signed-off-by: Shuah Khan -
Makefile already contains -D_GNU_SOURCE, so we can remove it from the
*.c files.Signed-off-by: Tommi Rantala
Signed-off-by: Shuah Khan
05 Nov, 2020
2 commits
-
Fix a possible use after free in xsk_socket__delete that will happen
if xsk_put_ctx() frees the ctx. To fix, save the umem reference taken
from the context and just use that instead.Fixes: 2f6324a3937f ("libbpf: Support shared umems between queues and devices")
Signed-off-by: Magnus Karlsson
Signed-off-by: Daniel Borkmann
Acked-by: Andrii Nakryiko
Link: https://lore.kernel.org/bpf/1604396490-12129-3-git-send-email-magnus.karlsson@gmail.com -
Fix a possible null pointer dereference in xsk_socket__delete that
will occur if a null pointer is fed into the function.Fixes: 2f6324a3937f ("libbpf: Support shared umems between queues and devices")
Reported-by: Andrii Nakryiko
Signed-off-by: Magnus Karlsson
Signed-off-by: Daniel Borkmann
Acked-by: Andrii Nakryiko
Link: https://lore.kernel.org/bpf/1604396490-12129-2-git-send-email-magnus.karlsson@gmail.com
