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Message #26656
[Bug 1789746] Re: getxattr: always handle namespaced attributes
This bug was fixed in the package linux - 4.15.0-38.41
---------------
linux (4.15.0-38.41) bionic; urgency=medium
* linux: 4.15.0-38.41 -proposed tracker (LP: #1797061)
* Silent data corruption in Linux kernel 4.15 (LP: #1796542)
- block: add a lower-level bio_add_page interface
- block: bio_iov_iter_get_pages: fix size of last iovec
- blkdev: __blkdev_direct_IO_simple: fix leak in error case
- block: bio_iov_iter_get_pages: pin more pages for multi-segment IOs
linux (4.15.0-37.40) bionic; urgency=medium
* linux: 4.15.0-37.40 -proposed tracker (LP: #1795564)
* hns3: enable ethtool rx-vlan-filter on supported hw (LP: #1793394)
- net: hns3: Add vlan filter setting by ethtool command -K
* hns3: Modifying channel parameters will reset ring parameters back to
defaults (LP: #1793404)
- net: hns3: Fix desc num set to default when setting channel
* hisi_sas: Add SATA FIX check for v3 hw (LP: #1794151)
- scsi: hisi_sas: Add SATA FIS check for v3 hw
* Fix potential corruption using SAS controller on HiSilicon arm64 boards
(LP: #1794156)
- scsi: hisi_sas: add memory barrier in task delivery function
* hisi_sas: Reduce unnecessary spin lock contention (LP: #1794165)
- scsi: hisi_sas: Tidy hisi_sas_task_prep()
* Add functional level reset support for the SAS controller on HiSilicon D06
systems (LP: #1794166)
- scsi: hisi_sas: tidy host controller reset function a bit
- scsi: hisi_sas: relocate some common code for v3 hw
- scsi: hisi_sas: Implement handlers of PCIe FLR for v3 hw
* HiSilicon SAS controller doesn't recover from PHY STP link timeout
(LP: #1794172)
- scsi: hisi_sas: tidy channel interrupt handler for v3 hw
- scsi: hisi_sas: Fix the failure of recovering PHY from STP link timeout
* getxattr: always handle namespaced attributes (LP: #1789746)
- getxattr: use correct xattr length
* Fix unusable NVIDIA GPU after S3 (LP: #1793338)
- PCI: Reprogram bridge prefetch registers on resume
* Fails to boot under Xen PV: BUG: unable to handle kernel paging request at
edc21fd9 (LP: #1789118)
- x86/EISA: Don't probe EISA bus for Xen PV guests
* qeth: use vzalloc for QUERY OAT buffer (LP: #1793086)
- s390/qeth: use vzalloc for QUERY OAT buffer
* SRU: Enable middle button of touchpad on ThinkPad P72 (LP: #1793463)
- Input: elantech - enable middle button of touchpad on ThinkPad P72
* Dell new AIO requires a new uart backlight driver (LP: #1727235)
- SAUCE: platform/x86: dell-uart-backlight: new backlight driver for DELL AIO
- updateconfigs for Dell UART backlight driver
* [Ubuntu] s390/crypto: Fix return code checking in cbc_paes_crypt.
(LP: #1794294)
- s390/crypto: Fix return code checking in cbc_paes_crypt()
* hns3: Retrieve RoCE MSI-X config from firmware (LP: #1793221)
- net: hns3: Fix MSIX allocation issue for VF
- net: hns3: Refine the MSIX allocation for PF
* net: hns: Avoid hang when link is changed while handling packets
(LP: #1792209)
- net: hns: add the code for cleaning pkt in chip
- net: hns: add netif_carrier_off before change speed and duplex
* Page leaking in cachefiles_read_backing_file while vmscan is active
(LP: #1793430)
- SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan
is active
* some nvidia p1000 graphic cards hang during the boot (LP: #1791569)
- drm/nouveau/gr/gf100-: virtualise tpc_mask + apply fixes from traces
* Error reported when creating ZFS pool with "-t" option, despite successful
pool creation (LP: #1769937)
- SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.4
* Fix I2C touchpanels' interrupt storms after system suspend (LP: #1792309)
- HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen
- HID: i2c-hid: Don't reset device upon system resume
* ipmmu is always registered (LP: #1783746)
- iommu/ipmmu-vmsa: Don't register as BUS IOMMU if machine doesn't have IPMMU-
VMSA
* Bionic update: upstream stable patchset 2018-09-27 (LP: #1794889)
- clocksource/drivers/imx-tpm: Correct some registers operation flow
- Input: synaptics-rmi4 - fix an unchecked out of memory error path
- KVM: X86: fix incorrect reference of trace_kvm_pi_irte_update
- x86: Add check for APIC access address for vmentry of L2 guests
- MIPS: io: Prevent compiler reordering writeX()
- nfp: ignore signals when communicating with management FW
- perf report: Fix switching to another perf.data file
- fsnotify: fix ignore mask logic in send_to_group()
- MIPS: io: Add barrier after register read in readX()
- s390/smsgiucv: disable SMSG on module unload
- isofs: fix potential memory leak in mount option parsing
- MIPS: dts: Boston: Fix PCI bus dtc warnings:
- spi: sh-msiof: Fix bit field overflow writes to TSCR/RSCR
- doc: Add vendor prefix for Kieback & Peter GmbH
- dt-bindings: pinctrl: sunxi: Fix reference to driver
- dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF
- dt-bindings: dmaengine: rcar-dmac: document R8A77965 support
- clk: honor CLK_MUX_ROUND_CLOSEST in generic clk mux
- ASoC: rt5514: Add the missing register in the readable table
- eCryptfs: don't pass up plaintext names when using filename encryption
- soc: bcm: raspberrypi-power: Fix use of __packed
- soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failure
- PCI: kirin: Fix reset gpio name
- ASoC: topology: Fix bugs of freeing soc topology
- xen: xenbus_dev_frontend: Really return response string
- ASoC: topology: Check widget kcontrols before deref.
- spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo()
- blkcg: don't hold blkcg lock when deactivating policy
- tipc: fix infinite loop when dumping link monitor summary
- scsi: iscsi: respond to netlink with unicast when appropriate
- scsi: megaraid_sas: Do not log an error if FW successfully initializes.
- scsi: target: fix crash with iscsi target and dvd
- netfilter: nf_tables: NAT chain and extensions require NF_TABLES
- netfilter: nf_tables: fix out-of-bounds in nft_chain_commit_update
- ASoC: msm8916-wcd-analog: use threaded context for mbhc events
- drm/msm: Fix possible null dereference on failure of get_pages()
- drm/msm/dsi: use correct enum in dsi_get_cmd_fmt
- drm/msm: don't deref error pointer in the msm_fbdev_create error path
- blkcg: init root blkcg_gq under lock
- vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion
- parisc: time: Convert read_persistent_clock() to read_persistent_clock64()
- scsi: storvsc: Set up correct queue depth values for IDE devices
- scsi: isci: Fix infinite loop in while loop
- mm, pagemap: fix swap offset value for PMD migration entry
- proc: revalidate kernel thread inodes to root:root
- kexec_file: do not add extra alignment to efi memmap
- mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create()
- usb: typec: ucsi: fix tracepoint related build error
- ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016)
- dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/
- net: phy: marvell: clear wol event before setting it
- ARM: dts: da850: fix W=1 warnings with pinmux node
- ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70
- drm/amdkfd: fix clock counter retrieval for node without GPU
- thermal: int3403_thermal: Fix NULL pointer deref on module load / probe
- net: ethtool: Add missing kernel doc for FEC parameters
- arm64: ptrace: remove addr_limit manipulation
- HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice
- HID: wacom: Release device resource data obtained by devres_alloc()
- selftests: ftrace: Add a testcase for multiple actions on trigger
- rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp
- perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1
- remoteproc: qcom: Fix potential device node leaks
- rpmsg: added MODULE_ALIAS for rpmsg_char
- HID: intel-ish-hid: use put_device() instead of kfree()
- blk-mq: fix sysfs inflight counter
- arm64: fix possible spectre-v1 in ptrace_hbp_get_event()
- KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr()
- libahci: Allow drivers to override stop_engine
- ata: ahci: mvebu: override ahci_stop_engine for mvebu AHCI
- x86/cpu/intel: Add missing TLB cpuid values
- bpf: fix uninitialized variable in bpf tools
- i2c: sprd: Prevent i2c accesses after suspend is called
- i2c: sprd: Fix the i2c count issue
- tipc: fix bug in function tipc_nl_node_dump_monitor
- nvme: depend on INFINIBAND_ADDR_TRANS
- nvmet-rdma: depend on INFINIBAND_ADDR_TRANS
- ib_srpt: depend on INFINIBAND_ADDR_TRANS
- ib_srp: depend on INFINIBAND_ADDR_TRANS
- IB: make INFINIBAND_ADDR_TRANS configurable
- IB/uverbs: Fix validating mandatory attributes
- RDMA/cma: Fix use after destroy access to net namespace for IPoIB
- RDMA/iwpm: fix memory leak on map_info
- IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV
- IB/rxe: avoid double kfree_skb
- <linux/stringhash.h>: fix end_name_hash() for 64bit long
- IB/core: Make ib_mad_client_id atomic
- ARM: davinci: board-da830-evm: fix GPIO lookup for MMC/SD
- ARM: davinci: board-da850-evm: fix GPIO lookup for MMC/SD
- ARM: davinci: board-omapl138-hawk: fix GPIO numbers for MMC/SD lookup
- ARM: davinci: board-dm355-evm: fix broken networking
- dt-bindings: panel: lvds: Fix path to display timing bindings
- ARM: OMAP2+: powerdomain: use raw_smp_processor_id() for trace
- ARM: dts: logicpd-som-lv: Fix WL127x Startup Issues
- ARM: dts: logicpd-som-lv: Fix Audio Mute
- Input: atmel_mxt_ts - fix the firmware update
- hexagon: add memset_io() helper
- hexagon: export csum_partial_copy_nocheck
- scsi: vmw-pvscsi: return DID_BUS_BUSY for adapter-initated aborts
- bpf, x64: fix memleak when not converging after image
- parisc: drivers.c: Fix section mismatches
- stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock
- kthread, sched/wait: Fix kthread_parkme() wait-loop
- arm64: tegra: Make BCM89610 PHY interrupt as active low
- iommu/vt-d: fix shift-out-of-bounds in bug checking
- nvme: fix potential memory leak in option parsing
- nvme: Set integrity flag for user passthrough commands
- ARM: OMAP1: ams-delta: fix deferred_fiq handler
- smc: fix sendpage() call
- IB/hfi1 Use correct type for num_user_context
- IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
- RDMA/cma: Do not query GID during QP state transition to RTR
- spi: bcm2835aux: ensure interrupts are enabled for shared handler
- sched/core: Introduce set_special_state()
- sh: fix build failure for J2 cpu with SMP disabled
- tee: check shm references are consistent in offset/size
- mac80211: Adjust SAE authentication timeout
- drm/omap: silence unititialized variable warning
- drm/omap: fix uninitialized ret variable
- drm/omap: fix possible NULL ref issue in tiler_reserve_2d
- drm/omap: check return value from soc_device_match
- drm/omap: handle alloc failures in omap_connector
- driver core: add __printf verification to __ata_ehi_pushv_desc
- ARM: dts: cygnus: fix irq type for arm global timer
- mac80211: use timeout from the AddBA response instead of the request
- net: aquantia: driver should correctly declare vlan_features bits
- can: dev: increase bus-off message severity
- arm64: Add MIDR encoding for NVIDIA CPUs
- cifs: smb2ops: Fix listxattr() when there are no EAs
- agp: uninorth: make two functions static
- tipc: eliminate KMSAN uninit-value in strcmp complaint
- qed: Fix l2 initializations over iWARP personality
- qede: Fix gfp flags sent to rdma event node allocation
- rxrpc: Fix error reception on AF_INET6 sockets
- rxrpc: Fix the min security level for kernel calls
- KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs
- x86: Delay skip of emulated hypercall instruction
- ixgbe: return error on unsupported SFP module when resetting
- net sched actions: fix invalid pointer dereferencing if skbedit flags
missing
- proc/kcore: don't bounds check against address 0
- ocfs2: take inode cluster lock before moving reflinked inode from orphan dir
- kprobes/x86: Prohibit probing on exception masking instructions
- uprobes/x86: Prohibit probing on MOV SS instruction
- objtool, kprobes/x86: Sync the latest <asm/insn.h> header with
tools/objtool/arch/x86/include/asm/insn.h
- x86/pkeys/selftests: Adjust the self-test to fresh distros that export the
pkeys ABI
- x86/mpx/selftests: Adjust the self-test to fresh distros that export the MPX
ABI
- x86/selftests: Add mov_to_ss test
- x86/pkeys/selftests: Give better unexpected fault error messages
- x86/pkeys/selftests: Stop using assert()
- x86/pkeys/selftests: Remove dead debugging code, fix dprint_in_signal
- x86/pkeys/selftests: Allow faults on unknown keys
- x86/pkeys/selftests: Factor out "instruction page"
- x86/pkeys/selftests: Add PROT_EXEC test
- x86/pkeys/selftests: Fix pkey exhaustion test off-by-one
- x86/pkeys/selftests: Fix pointer math
- x86/pkeys/selftests: Save off 'prot' for allocations
- x86/pkeys/selftests: Add a test for pkey 0
- mtd: Fix comparison in map_word_andequal()
- afs: Fix the non-encryption of calls
- usb: musb: fix remote wakeup racing with suspend
- ARM: keystone: fix platform_domain_notifier array overrun
- i2c: pmcmsp: return message count on master_xfer success
- i2c: pmcmsp: fix error return from master_xfer
- i2c: viperboard: return message count on master_xfer success
- ARM: davinci: dm646x: fix timer interrupt generation
- ARM: davinci: board-dm646x-evm: pass correct I2C adapter id for VPIF
- ARM: davinci: board-dm646x-evm: set VPIF capture card name
- clk: imx6ull: use OSC clock during AXI rate change
- locking/rwsem: Add a new RWSEM_ANONYMOUSLY_OWNED flag
- locking/percpu-rwsem: Annotate rwsem ownership transfer by setting
RWSEM_OWNER_UNKNOWN
- drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl()
- sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to
kernel/sched/sched.h
- sched/deadline: Make the grub_reclaim() function static
- parisc: Move setup_profiling_timer() out of init section
- efi/libstub/arm64: Handle randomized TEXT_OFFSET
- ARM: 8753/1: decompressor: add a missing parameter to the addruart macro
- ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the
kernel
- ARM: kexec: fix kdump register saving on panic()
- Revert "Btrfs: fix scrub to repair raid6 corruption"
- Btrfs: fix scrub to repair raid6 corruption
- Btrfs: make raid6 rebuild retry more
- tcp: do not overshoot window_clamp in tcp_rcv_space_adjust()
- ibmvnic: Do not notify peers on parameter change resets
- dt-bindings: net: ravb: Add support for r8a77965 SoC
- X86/KVM: Properly update 'tsc_offset' to represent the running guest
- kvm: x86: move MSR_IA32_TSC handling to x86.c
- ARM: dts: Fix cm2 and prm sizes for omap4
- powerpc/64s: Default l1d_size to 64K in RFI fallback flush
- KVM: arm/arm64: vgic: Kick new VCPU on interrupt migration
- arm64: kasan: avoid pfn_to_nid() before page array is initialized
- ARM64: dts: meson-gxl: add USB host support
- ARM64: dts: meson-gxm: add GXM specific USB host configuration
- ARM64: dts: meson-gxl-s905x-p212: enable the USB controller
- ARM64: dts: meson-gx-p23x-q20x: enable the USB controller
- ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller
- ARM64: dts: meson-gxl-nexbox-a95x: enable the USB controller
- ARM64: dts: meson-gxm-khadas-vim2: enable the USB controller
- arm64: dts: correct SATA addresses for Stingray
- afs: Fix server record deletion
- proc: fix /proc/loadavg regression
- s390/qeth: fix request-side race during cmd IO timeout
- ACPI / scan: Initialize watchdog before PNP
- CIFS: set *resp_buf_type to NO_BUFFER on error
- arm64: dts: uniphier: fix input delay value for legacy mode of eMMC
- igb: Fix the transmission mode of queue 0 for Qav mode
- RISC-V: build vdso-dummy.o with -no-pie
- arm64: only advance singlestep for user instruction traps
- perf pmu: Fix core PMU alias list for X86 platform
- bpf, x64: fix JIT emission for dead code
- powerpc/kvm/booke: Fix altivec related build break
- reset: uniphier: fix USB clock line for LD20
- nfp: don't depend on eth_tbl being available
- net: mvpp2: Fix clk error path in mvpp2_probe
- kvm: apic: Flush TLB after APIC mode/address change if VPIDs are in use
- IB/uverbs: Fix validating mandatory attributes
- RDMA/hns: Intercept illegal RDMA operation when use inline data
- pinctrl: cherryview: Associate IRQ descriptors to irqdomain
- kthread, sched/wait: Fix kthread_parkme() completion issue
- iommu/vt-d: Fix usage of force parameter in intel_ir_reconfigure_irte()
- nvme/multipath: Disable runtime writable enabling parameter
- ARM: dts: correct missing "compatible" entry for ti81xx SoCs
- usb: typec: tps6598x: handle block reads separately with plain-I2C adapters
- IB/mlx4: Fix integer overflow when calculating optimal MTT size
- bpf: add map_alloc_check callback
- bpf: fix possible spectre-v1 in find_and_alloc_map()
- drm/exynos/mixer: fix synchronization check in interlaced mode
- drm/exynos: mixer: avoid Oops in vp_video_buffer()
- bpf: use array_index_nospec in find_prog_type
- gcc-plugins: fix build condition of SANCOV plugin
- drm/vc4: Fix oops dereferencing DPI's connector since panel_bridge.
- nvme: fix use-after-free in nvme_free_ns_head
- powerpc/pseries: Fix CONFIG_NUMA=n build
- HID: i2c-hid: Add RESEND_REPORT_DESCR quirk for Toshiba Click Mini L9W-B
- cifs: Allocate validate negotiation request through kmalloc
- drm/amdgpu: Switch to interruptable wait to recover from ring hang.
- rxrpc: Fix missing start of call timeout
- ARM: dts: imx51-zii-rdu1: fix touchscreen bindings
- sh: switch to NO_BOOTMEM
- lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit()
- x86/pkeys/selftests: Avoid printf-in-signal deadlocks
- afs: Fix address list parsing
- afs: Fix refcounting in callback registration
- afs: Fix server rotation's handling of fileserver probe failure
- afs: Fix VNOVOL handling in address rotation
- afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
- afs: Fix afs_find_server search loop
- KVM: X86: Lower the default timer frequency limit to 200us
- platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
- ARM: replace unnecessary perl with sed and the shell $(( )) operator
* Improvements to the kernel source package preparation (LP: #1793461)
- [Packaging] startnewrelease: add support for backport kernels
* Kernel 4.15.0-35.38 fails to build with CONFIG_XFS_ONLINE_SCRUB enabled
(LP: #1792393)
- SAUCE: xfs: fix build error with CONFIG_XFS_ONLINE_SCRUB enabled
* update ENA driver to latest mainline version (LP: #1792044)
- net: ena: add detection and recovery mechanism for handling missed/misrouted
MSI-X
- net: ena: increase ena driver version to 1.5.0
- net: ena: Eliminate duplicate barriers on weakly-ordered archs
- SAUCE: ena: devm_kzalloc() -> devm_kcalloc()
- net: ena: Fix use of uninitialized DMA address bits field
- net: ena: fix surprise unplug NULL dereference kernel crash
- net: ena: fix driver when PAGE_SIZE == 64kB
- net: ena: fix device destruction to gracefully free resources
- net: ena: fix potential double ena_destroy_device()
- net: ena: fix missing lock during device destruction
- net: ena: fix missing calls to READ_ONCE
- net: ena: fix incorrect usage of memory barriers
-- Stefan Bader <stefan.bader@xxxxxxxxxxxxx> Wed, 10 Oct 2018 11:20:35
+0200
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
--
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1789746
Title:
getxattr: always handle namespaced attributes
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Released
Bug description:
== SRU Justification ==
When running in a container with a user namespace, if you call getxattr
with name = "system.posix_acl_access" and size % 8 != 4, then getxattr
silently skips the user namespace fixup that it normally does resulting in
un-fixed-up data being returned.
This is caused by posix_acl_fix_xattr_to_user() being passed the total
buffer size and not the actual size of the xattr as returned by
vfs_getxattr().
I have pushed a commit upstream that fixes this bug:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=82c9a927bc5df6e06b72d206d24a9d10cced4eb5
This commit passes the actual length of the xattr as returned by
vfs_getxattr() down.
A reproducer for the issue is:
touch acl_posix
setfacl -m user:0:rwx acl_posix
and the compile:
#define _GNU_SOURCE
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <attr/xattr.h>
/* Run in user namespace with nsuid 0 mapped to uid != 0 on the host. */
int main(int argc, void **argv)
{
ssize_t ret1, ret2;
char buf1[128], buf2[132];
int fret = EXIT_SUCCESS;
char *file;
if (argc < 2) {
fprintf(stderr,
"Please specify a file with "
"\"system.posix_acl_access\" permissions set\n");
_exit(EXIT_FAILURE);
}
file = argv[1];
ret1 = getxattr(file, "system.posix_acl_access",
buf1, sizeof(buf1));
if (ret1 < 0) {
fprintf(stderr, "%s - Failed to retrieve "
"\"system.posix_acl_access\" "
"from \"%s\"\n", strerror(errno), file);
_exit(EXIT_FAILURE);
}
ret2 = getxattr(file, "system.posix_acl_access",
buf2, sizeof(buf2));
if (ret2 < 0) {
fprintf(stderr, "%s - Failed to retrieve "
"\"system.posix_acl_access\" "
"from \"%s\"\n", strerror(errno), file);
_exit(EXIT_FAILURE);
}
if (ret1 != ret2) {
fprintf(stderr, "The value of \"system.posix_acl_"
"access\" for file \"%s\" changed "
"between two successive calls\n", file);
_exit(EXIT_FAILURE);
}
for (ssize_t i = 0; i < ret2; i++) {
if (buf1[i] == buf2[i])
continue;
fprintf(stderr,
"Unexpected different in byte %zd: "
"%02x != %02x\n", i, buf1[i], buf2[i]);
fret = EXIT_FAILURE;
}
if (fret == EXIT_SUCCESS)
fprintf(stderr, "Test passed\n");
else
fprintf(stderr, "Test failed\n");
_exit(fret);
}
and run:
./tester acl_posix
On a non-fixed up kernel this should return something like:
root@c1:/# ./t
Unexpected different in byte 16: ffffffa0 != 00
Unexpected different in byte 17: ffffff86 != 00
Unexpected different in byte 18: 01 != 00
and on a fixed kernel:
root@c1:~# ./t
Test passed
== Fix ==
82c9a927bc5d ("getxattr: use correct xattr length")
== Regression Potential ==
Low. One liner that passes the actual length of the xattr as returned by
vfs_getxattr() down.
== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.
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