Bug#1036960: plocate: coredump on any search

[Steinar H. Gunderson]

On Tue, May 30, 2023 at 05:09:07PM -0400, Nick Black (Public gmail account) 
wrote:
> I've been using plocate for many months on all my machines without problems.
> Recently, I get a coredump on any search, on all the machines on which I've
> tested. I've got a stack trace that points at do_search_file():
> 
> Thread 1 (Thread 0x7f426c687740 (LWP 914015) "locate"):
> #0  __pthread_kill_implementation (threadid=,
> signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
> #1  0x7f426c2a9d2f in __pthread_kill_internal (signo=6, 
> threadid= out>) at ./nptl/pthread_kill.c:78
> #2  0x7f426c25aef2 in __GI_raise (sig=sig@entry=6) at
> ../sysdeps/posix/raise.c:26
> #3  0x7f426c245472 in __GI_abort () at ./stdlib/abort.c:79
> #4  0x7f426c29e2d0 in __libc_message (action=action@entry=do_abort,
> fmt=fmt@entry=0x7f426c3b8459 "%s\n") at ../sysdeps/posix/libc_fatal.c:155
> #5  0x7f426c2b364a in malloc_printerr (str=str@entry=0x7f426c3b60b1
> "free(): invalid pointer") at ./malloc/malloc.c:5660
> #6  0x7f426c2b53d4 in _int_free (av=, p=,
> have_lock=have_lock@entry=0) at ./malloc/malloc.c:4435
> #7  0x7f426c2b7d2f in __GI___libc_free (mem=) at
> ./malloc/malloc.c:3385
> #8  0x5617abf86e1a in do_search_file (needles=std::vector of length 1,
> capacity 1 = {...}, filename="plocate.db") at ../plocate.cpp:491
> #9  0x5617abf804b8 in main (argc=, argv=) at
> ../plocate.cpp:995

The stack trace seems somewhat misleading, but I wonder perhaps if this is

  
https://git.sesse.net/?p=plocate;a=commitdiff;h=7f39444852308224240ebfb75e0bf8f39403afa0

Could you check if downgrading liburing helps? (If so, this shouldn't affect
bookworm as far as I understand)

/* Steinar */
-- 
Homepage: https://www.sesse.net/

Bug#1036960: plocate: coredump on any search

[Nick Black (Public gmail account)]

Package: plocate
Version: 1.1.18-1
Severity: normal
Tags: upstream
X-Debbugs-Cc: dankamong...@gmail.com

Dear Maintainer,

   * What led up to the situation?

I've been using plocate for many months on all my machines without problems.
Recently, I get a coredump on any search, on all the machines on which I've
tested. I've got a stack trace that points at do_search_file():

Thread 1 (Thread 0x7f426c687740 (LWP 914015) "locate"):
#0  __pthread_kill_implementation (threadid=,
signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
#1  0x7f426c2a9d2f in __pthread_kill_internal (signo=6, threadid=) at ./nptl/pthread_kill.c:78
#2  0x7f426c25aef2 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#3  0x7f426c245472 in __GI_abort () at ./stdlib/abort.c:79
#4  0x7f426c29e2d0 in __libc_message (action=action@entry=do_abort,
fmt=fmt@entry=0x7f426c3b8459 "%s\n") at ../sysdeps/posix/libc_fatal.c:155
#5  0x7f426c2b364a in malloc_printerr (str=str@entry=0x7f426c3b60b1
"free(): invalid pointer") at ./malloc/malloc.c:5660
#6  0x7f426c2b53d4 in _int_free (av=, p=,
have_lock=have_lock@entry=0) at ./malloc/malloc.c:4435
#7  0x7f426c2b7d2f in __GI___libc_free (mem=) at
./malloc/malloc.c:3385
#8  0x5617abf86e1a in do_search_file (needles=std::vector of length 1,
capacity 1 = {...}, filename="plocate.db") at ../plocate.cpp:491
#9  0x5617abf804b8 in main (argc=, argv=) at
../plocate.cpp:995

this also happens with an empty database.


-- System Information:
Debian Release: 12.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (300, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.3.4nlb2 (SMP w/64 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages plocate depends on:
ii  adduser 3.134
ii  libc6   2.36-9
ii  libgcc-s1   12.2.0-14
ii  libstdc++6  12.2.0-14
ii  liburing2   2.3-3
ii  libzstd11.5.4+dfsg2-5

plocate recommends no packages.

Versions of packages plocate suggests:
ii  nocache 1.1-1+b1
ii  powermgmt-base  1.37
ii  systemd-sysv252.6-1

-- Configuration Files:
/etc/updatedb.conf changed:
PRUNE_BIND_MOUNTS="yes"
PRUNEPATHS="/tmp /var/spool /media/usb /media/dank /media/mtp /media/killermike 
/var/lib/os-prober /var/lib/ceph /home/.ecryptfs /var/lib/schroot"
PRUNEFS="NFS afs autofs binfmt_misc ceph cgroup cgroup2 cifs coda configfs 
curlftpfs debugfs devfs devpts devtmpfs ecryptfs ftpfs fuse.ceph fuse.cryfs 
fuse.encfs fuse.glusterfs fuse.gocryptfs fuse.gvfsd-fuse fuse.mfs fuse.rclone 
fuse.rozofs fuse.sshfs fusectl fusesmb hugetlbfs iso9660 lustre lustre_lite mfs 
mqueue ncpfs nfs nfs4 ocfs ocfs2 proc pstore rpc_pipefs securityfs shfs smbfs 
sysfs tmpfs tracefs udev udf usbfs"


-- no debconf information