Public bug reported: Binary package hint: libapache2-mod-php4
Early this morning (2006-07-20), I got the security update for php4 (4.3.10-10ubuntu4.5) including libapache2-mod-php4. Since then, a lot of my gallery2 (http://gallery2.sf.net/) pages SIGSEGV. Since this is a security update that's caused the SIGSEGV (admittedly, this is based on timing, and the actual cause of the SIGSEGV's may not be the security update), I'm checking the "security vulnerability" flag (it's at least arguably a DoS, as my gallery is now only intermittently available). On a related note, it appears that security.ubuntu.com doesn't keep around older packages, as I don't see a route that lets me downgrade to php4=4:4.3.10-10ubuntu4.4 so if someone could point out where I could get those older bits, that'd be great as both a workaround and confirmation that it's the fix in the *4.5 bits that's causing this on my system. Here's an strace from one death: ... fstat64(17, {st_mode=S_IFREG|0644, st_size=6147, ...}) = 0 mmap2(NULL, 6147, PROT_READ, MAP_SHARED, 17, 0) = 0xb75db000 munmap(0xb75db000, 6147) = 0 close(17) = 0 access("/var/www/gallery2/g2data/cache/entity/2/3", F_OK) = 0 stat64("/var/www/gallery2/g2data/cache/entity/2/3", {st_mode=S_IFDIR|0755, st_size=20480, ...}) = 0 gettimeofday({1153449599, 634894}, NULL) = 0 getpid() = 27932 open("/var/www/gallery2/g2data/cache/entity/2/3/23610.incLIybig", O_RDWR|O_CREAT|O_EXCL, 0600) = 17 fcntl64(17, F_GETFL) = 0x2 (flags O_RDWR) fstat64(17, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb75dc000 _llseek(17, 0, [0], SEEK_CUR) = 0 close(17) = 0 munmap(0xb75dc000, 4096) = 0 getcwd("/var/www/gallery2", 4096) = 18 lstat64("/var", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2/g2data", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2/g2data/cache", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2/g2data/cache/entity", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2/g2data/cache/entity/2", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/var/www/gallery2/g2data/cache/entity/2/3", {st_mode=S_IFDIR|0755, st_size=20480, ...}) = 0 lstat64("/var/www/gallery2/g2data/cache/entity/2/3/23610.incLIybig", {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 open("/var/www/gallery2/g2data/cache/entity/2/3/23610.incLIybig", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 17 fstat64(17, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 lseek(17, 0, SEEK_CUR) = 0 chmod("/var/www/gallery2/g2data/cache/entity/2/3/23610.incLIybig", 0644) = 0 write(17, "modules/core/classes/GalleryDeri"..., 1256) = 1256 close(17) = 0 rename("/var/www/gallery2/g2data/cache/entity/2/3/23610.incLIybig", "/var/www/gallery2/g2data/cache/entity/2/3/23610.inc") = 0 fcntl64(12, F_SETFL, O_RDWR|O_NONBLOCK) = 0 read(12, 0x89ce3e0, 8192) = -1 EAGAIN (Resource temporarily unavailable) fcntl64(12, F_SETFL, O_RDWR) = 0 write(12, "p\0\0\0\3\n\tSELECT\n\t g2_Derivative.g"..., 116) = 116 read(12, "\1\0\0\1", 4) = 4 read(12, "\1", 1) = 1 read(12, "\35\0\0\2", 4) = 4 read(12, "[EMAIL PROTECTED]", 29) = 29 read(12, "\1\0\0\3", 4) = 4 read(12, "\376", 1) = 1 read(12, "\1\0\0\4", 4) = 4 read(12, "\376", 1) = 1 --- SIGSEGV (Segmentation fault) @ 0 (0) --- chdir("/etc/apache2") = 0 rt_sigaction(SIGSEGV, {SIG_DFL}, {SIG_DFL}, 8) = 0 getpid() = 27932 getpid() = 27932 kill(27932, SIGSEGV) = 0 sigreturn() = ? (mask now []) --- SIGSEGV (Segmentation fault) @ 0 (0) --- Process 27932 detached ** Affects: php4 (Ubuntu) Importance: Untriaged Status: Unconfirmed ** Visibility changed to: Public -- hoary: intermittent SIGSEGV from php pages after upgrade to 4.3.10-10ubuntu4.5 https://launchpad.net/bugs/53581 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
