Bug#1024811: linux: /proc/[pid]/stat unparsable
Package: src:linux
Version: 5.10.149-2
Severity: normal
Tags: upstream
X-Debbugs-Cc: tg@mirbsd.de, adobriyan@gmail.com
tglase@x61w:~ $ cp /bin/mksh mk\ sh
tglase@x61w:~ $ ./mk\ sh -c 'echo $$; sleep 10' &
[1] 12862
tglase@x61w:~ $ 12862
cat /proc/12862/stat
12862 (mk sh) S 12649 12862 12649 34838 12864 4194304 124 0 0 0 0 0 0 0 20 0 1 0 58970609 2977792 211 18446744073709551615 93898845827072 93898846076365 140724844598496 0 0 0 0 0 134307847 0 0 0 17 0 0 0 0 0 0 93898846102320 93898846110384 93898853036032 140724844603277 140724844603306 140724844603306 140724844605424 0
tglase@x61w:~ $ cat /proc/12862/stat | hd
00000000 31 32 38 36 32 20 28 6d 6b 20 73 68 29 20 53 20 |12862 (mk sh) S |
[…]
This directly violates the documentation of proc(5) which says…
The fields, in order, with their proper scanf(3) format speci‐
fiers, are listed below. Whether or not certain of these fields
… while scanf(3) indicates:
s Matches a sequence of non-white-space characters; the next
The effect is that /proc/[pid]/stat cannot be parsed the way it is
documented, as it does not escape embedded whitespace characters;
this, as a result, makes this file realistically useless and anything
relying on it broken.
-- Package-specific info:
** Version:
Linux version 5.10.0-19-amd64 (debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.149-2 (2022-10-21)
** Command line:
BOOT_IMAGE=/SDcardBoot/vmlinuz-5.10.0-19-amd64 root=/dev/mapper/vg--cSD-lv--root ro net.ifnames=0 vga=792
** Tainted: W (512)
* kernel issued warning
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: LENOVO
product_name: 7673AG4
product_version: ThinkPad X61
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 7NET30WW (1.11 )
board_vendor: LENOVO
board_name: 7673AG4
board_version: Not Available
** Loaded modules:
cdc_acm
apple_mfi_fastcharge
fuse
cpufreq_ondemand
tun
ctr
ccm
cpufreq_powersave
snd_hda_codec_analog
snd_hda_codec_generic
snd_hda_intel
i915
snd_intel_dspcfg
soundwire_intel
soundwire_generic_allocation
snd_soc_core
iwl4965
iwlegacy
snd_compress
soundwire_cadence
mac80211
snd_hda_codec
coretemp
snd_hda_core
kvm_intel
snd_hwdep
drm_kms_helper
cfg80211
kvm
soundwire_bus
thinkpad_acpi
cec
snd_pcm
pcmcia
drm
iTCO_wdt
nvram
snd_timer
ppdev
ledtrig_audio
intel_pmc_bxt
libarc4
snd
evdev
yenta_socket
i2c_algo_bit
soundcore
rfkill
iTCO_vendor_support
irqbypass
pcmcia_rsrc
watchdog
parport_pc
pcmcia_core
serio_raw
pcspkr
sg
parport
ac
acpi_cpufreq
button
ecb
aes_generic
libaes
crypto_simd
cryptd
glue_helper
xts
dm_crypt
dm_mod
ext4
crc16
mbcache
jbd2
crc32c_generic
sd_mod
t10_pi
crc_t10dif
crct10dif_generic
mmc_block
crct10dif_common
ata_generic
ahci
ata_piix
sdhci_pci
libahci
cqhci
ehci_pci
uhci_hcd
libata
e1000e
scsi_mod
ehci_hcd
sdhci
i2c_i801
i2c_smbus
psmouse
lpc_ich
mmc_core
usbcore
ptp
usb_common
pps_core
battery
video
** PCI devices:
not available
** USB devices:
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 17ef:1000 Lenovo ThinkPad X6 UltraBase
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-- System Information:
Debian Release: 11.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-19-amd64 (SMP w/2 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to C.UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/lksh
Init: sysvinit (via /sbin/init)
Versions of packages linux-image-5.10.0-19-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.140
ii kmod 28-1
ii linux-base 4.6
Versions of packages linux-image-5.10.0-19-amd64 recommends:
pn apparmor <none>
ii firmware-linux-free 20200122-1
Versions of packages linux-image-5.10.0-19-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-pc 2.06-3~deb11u4
pn linux-doc-5.10 <none>
Versions of packages linux-image-5.10.0-19-amd64 is related to:
pn firmware-amd-graphics <none>
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>
ii firmware-iwlwifi 20210315-3
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
pn firmware-misc-nonfree <none>
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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