Bug#914526: linux-image-4.18.0-0.bpo.1-amd64: Invalidating filesystems can corrupt dentry table leading to busy loop in kernel.
Package: src:linux
Version: 4.18.6-1~bpo9+1
Severity: important
Tags: upstream patch
Please see https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git/commit/?h=for-linus - invalidating
filesystems can cause dentry table corruption leading to busy loop in kernel. Easily triggered from userspace (observed
triggers using NFS, XFS and ZFS).
Patch supplied upstream; please consider cherrypicking this to BPO kernel.
Thanks.
-- Package-specific info:
** Version:
Linux version 4.18.0-0.bpo.1-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)) #1 SMP Debian 4.18.6-1~bpo9+1 (2018-09-13)
** Command line:
BOOT_IMAGE=/boot@/boot/vmlinuz-4.18.0-0.bpo.1-amd64 root=ZFS=rpool/boot ro
** Tainted: PO (4097)
* Proprietary module has been loaded.
* Out-of-tree module has been loaded.
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor:
product_name:
product_version:
chassis_vendor:
chassis_version:
bios_vendor: Intel Corporation
bios_version: MYBDWi30.86A.0038.2016.0913.1446
board_vendor: Intel Corporation
board_name: NUC5i3MYBE
board_version: H47781-206
** Loaded modules:
xt_nat
cfg80211
xt_tcpmss
ipt_MASQUERADE
xt_limit
xt_recent
ip6table_nat
nf_nat_ipv6
ip6t_REJECT
nf_reject_ipv6
ip6table_mangle
ip6table_raw
nf_conntrack_ipv6
nf_defrag_ipv6
nf_log_ipv6
ip6table_filter
ip6_tables
xt_comment
iptable_nat
nf_nat_ipv4
ipt_REJECT
nf_reject_ipv4
xt_addrtype
bridge
xt_mark
iptable_mangle
xt_TCPMSS
xt_tcpudp
xt_CT
iptable_raw
xt_multiport
nf_conntrack_ipv4
nf_defrag_ipv4
xt_conntrack
xt_NFLOG
xt_LOG
nf_log_ipv4
nf_log_common
nf_nat_tftp
nf_nat_snmp_basic
nf_conntrack_snmp
nf_nat_sip
nf_nat_pptp
nf_nat_proto_gre
nf_nat_irc
nf_nat_h323
nf_nat_ftp
nf_nat_amanda
ts_kmp
nf_conntrack_amanda
nf_nat
nf_conntrack_sane
nf_conntrack_tftp
nf_conntrack_sip
nf_conntrack_pptp
nf_conntrack_proto_gre
nf_conntrack_netlink
nf_conntrack_netbios_ns
nf_conntrack_broadcast
nf_conntrack_irc
nf_conntrack_h323
nf_conntrack_ftp
nf_conntrack
libcrc32c
crc32c_generic
iptable_filter
nfnetlink_queue
nfnetlink_log
nfnetlink
bluetooth
drbg
ansi_cprng
ecdh_generic
rfkill
crc16
pppoe
pppox
ppp_generic
slhc
binfmt_misc
nls_ascii
nls_cp437
vfat
fat
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
coretemp
kvm_intel
iTCO_wdt
iTCO_vendor_support
evdev
kvm
i915
irqbypass
crct10dif_pclmul
crc32_pclmul
pl2303
drm_kms_helper
usbserial
ghash_clmulni_intel
sg
drm
intel_cstate
mei_me
mei
intel_uncore
lpc_ich
pcspkr
efi_pstore
intel_rapl_perf
efivars
video
button
acpi_pad
pcc_cpufreq
bonding
8021q
garp
mrp
stp
llc
efivarfs
ip_tables
x_tables
autofs4
zfs(PO)
zunicode(PO)
zavl(PO)
icp(PO)
zcommon(PO)
znvpair(PO)
spl(O)
sd_mod
crc32c_intel
ahci
libahci
libata
igb
i2c_algo_bit
scsi_mod
dca
aesni_intel
xhci_pci
ehci_pci
xhci_hcd
ehci_hcd
aes_x86_64
crypto_simd
i2c_i801
cryptd
glue_helper
usbcore
e1000e
usb_common
fan
thermal
** PCI devices:
not available
** USB devices:
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 2109:0813 VIA Labs, Inc.
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 0557:2008 ATEN International Co., Ltd UC-232A Serial Port [pl2303]
Bus 002 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 002 Device 002: ID 2109:2813 VIA Labs, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-- System Information:
Debian Release: 9.6
APT prefers stable
APT policy: (700, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)
Kernel: Linux 4.18.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages linux-image-4.18.0-0.bpo.1-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.130
ii kmod 23-2
ii linux-base 4.5
Versions of packages linux-image-4.18.0-0.bpo.1-amd64 recommends:
ii apparmor 2.11.0-3+deb9u2
ii firmware-linux-free 3.4
ii irqbalance 1.1.0-2.3
Versions of packages linux-image-4.18.0-0.bpo.1-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-efi-amd64 2.02~beta3-5+deb9u1
pn linux-doc-4.18 <none>
Versions of packages linux-image-4.18.0-0.bpo.1-amd64 is related to:
ii firmware-amd-graphics 20180825+dfsg-1~bpo9+1
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
ii firmware-linux-nonfree 20180825+dfsg-1~bpo9+1
ii firmware-misc-nonfree 20180825+dfsg-1~bpo9+1
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-realtek <none>
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
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