| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20080322222531.GA12182@animx.eu.org> Date: Sat, 22 Mar 2008 18:25:31 -0400 From: Wakko Warner <wakko@...mx.eu.org> To: linux-kernel@...r.kernel.org Subject: 2.6.24.3 bug in sysfs with md. I was poking around with the files laying in /sys/block/md*/md/dev-*/super and found this bug (NOTE: I attempted to read the file 2 times): [ 5591.212764] ------------[ cut here ]------------ [ 5591.212773] kernel BUG at /usr/src/linux/dist/2.6.24.3/fs/sysfs/file.c:126! [ 5591.212778] invalid opcode: 0000 [#1] PREEMPT SMP [ 5591.212784] Modules linked in: xt_mark xt_mac xt_MARK iptable_mangle isofs nls_base usbhid ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_async crc_ccitt radeon drm nfsd lockd exportfs sunrpc parport_pc parport 8250_pnp snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc i2c_i801 i2c_core sg sr_mod cdrom ata_piix libata asix usbnet mii ehci_hcd uhci_hcd usbcore intel_agp agpgart iptable_nat nf_nat xt_limit ipt_LOG xt_state xt_tcpudp ipt_recent nf_conntrack_ipv4 xt_conntrack nf_conntrack ipt_REJECT iptable_filter ip_tables x_tables tun bitrev crc32 ppp_generic slhc e1000 bridge llc reiserfs ext2 raid1 dm_snapshot dm_mirror dm_mod rtc 8250 serial_core [ 5591.212886] [ 5591.212891] Pid: 11834, comm: grep Not tainted (2.6.24.3 #2) [ 5591.212895] EIP: 0060:[<c019465f>] EFLAGS: 00010212 CPU: 0 [ 5591.212905] EIP is at sysfs_read_file+0xd6/0xda [ 5591.212909] EAX: 00000001 EBX: f7500b40 ECX: 00000000 EDX: f6d9dc6c [ 5591.212914] ESI: 00001000 EDI: f6d9dc14 EBP: f7500b54 ESP: f183bf50 [ 5591.212918] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 5591.212923] Process grep (pid: 11834, ti=f183a000 task=f2cc7570 task.ti=f183a000) [ 5591.212927] Stack: 00000004 0000001c 00008000 08062000 c034fb10 f6cf0ac4 f51ac380 08062000 [ 5591.212940] f183bfa0 00008000 c015d8ac f183bfa0 00000020 c0194589 f51ac380 fffffff7 [ 5591.212951] 00009001 f183a000 c015dcee f183bfa0 00000000 00000000 00000000 00000004 [ 5591.212963] Call Trace: [ 5591.212992] [<c015d8ac>] vfs_read+0x89/0x117 [ 5591.213007] [<c0194589>] sysfs_read_file+0x0/0xda [ 5591.213025] [<c015dcee>] sys_read+0x41/0x6a [ 5591.213046] [<c0103402>] syscall_call+0x7/0xb [ 5591.213076] [<c02a0000>] igmpv3_sendpack+0x4/0xb6 [ 5591.213103] ======================= [ 5591.213106] Code: e8 c2 79 11 00 89 f0 83 c4 18 5b 5e 5f 5d c3 b8 d0 00 00 00 e8 4f d8 fa ff 89 43 0c 85 c0 0f 85 74 ff ff ff be f4 ff ff ff eb d3 <0f> 0b eb fe 55 57 56 53 83 ec 04 89 c7 89 d5 89 0c 24 8b 74 24 [ 5591.213172] EIP: [<c019465f>] sysfs_read_file+0xd6/0xda SS:ESP 0068:f183bf50 [ 5591.213188] ---[ end trace 800d6d1bf01f2a42 ]--- [ 5606.444691] ------------[ cut here ]------------ [ 5606.444698] kernel BUG at /usr/src/linux/dist/2.6.24.3/fs/sysfs/file.c:126! [ 5606.444702] invalid opcode: 0000 [#2] PREEMPT SMP [ 5606.444706] Modules linked in: xt_mark xt_mac xt_MARK iptable_mangle isofs nls_base usbhid ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_async crc_ccitt radeon drm nfsd lockd exportfs sunrpc parport_pc parport 8250_pnp snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc i2c_i801 i2c_core sg sr_mod cdrom ata_piix libata asix usbnet mii ehci_hcd uhci_hcd usbcore intel_agp agpgart iptable_nat nf_nat xt_limit ipt_LOG xt_state xt_tcpudp ipt_recent nf_conntrack_ipv4 xt_conntrack nf_conntrack ipt_REJECT iptable_filter ip_tables x_tables tun bitrev crc32 ppp_generic slhc e1000 bridge llc reiserfs ext2 raid1 dm_snapshot dm_mirror dm_mod rtc 8250 serial_core [ 5606.444777] [ 5606.444780] Pid: 11835, comm: less Tainted: G D (2.6.24.3 #2) [ 5606.444783] EIP: 0060:[<c019465f>] EFLAGS: 00010212 CPU: 0 [ 5606.444792] EIP is at sysfs_read_file+0xd6/0xda [ 5606.444795] EAX: 00000001 EBX: f7500480 ECX: 00000000 EDX: f6d9dc6c [ 5606.444798] ESI: 00001000 EDI: f6d9dc14 EBP: f7500494 ESP: ec4b9f50 [ 5606.444800] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 5606.444804] Process less (pid: 11835, ti=ec4b8000 task=f6c6c030 task.ti=ec4b8000) [ 5606.444806] Stack: 00000005 0000001b 00000040 bfb05e6c c034fb10 f6cf0ac4 f51ac080 bfb05e6c [ 5606.444815] ec4b9fa0 00000040 c015d8ac ec4b9fa0 c015cc31 c0194589 f51ac080 fffffff7 [ 5606.444823] bfb05e6c ec4b8000 c015dcee ec4b9fa0 00000000 00000000 00000000 00000005 [ 5606.444831] Call Trace: [ 5606.444855] [<c015d8ac>] vfs_read+0x89/0x117 [ 5606.444864] [<c015cc31>] vfs_llseek+0x36/0x3c [ 5606.444868] [<c0194589>] sysfs_read_file+0x0/0xda [ 5606.444881] [<c015dcee>] sys_read+0x41/0x6a [ 5606.444897] [<c0103402>] syscall_call+0x7/0xb [ 5606.444922] [<c02a0000>] igmpv3_sendpack+0x4/0xb6 [ 5606.444945] ======================= [ 5606.444947] Code: e8 c2 79 11 00 89 f0 83 c4 18 5b 5e 5f 5d c3 b8 d0 00 00 00 e8 4f d8 fa ff 89 43 0c 85 c0 0f 85 74 ff ff ff be f4 ff ff ff eb d3 <0f> 0b eb fe 55 57 56 53 83 ec 04 89 c7 89 d5 89 0c 24 8b 74 24 [ 5606.444994] EIP: [<c019465f>] sysfs_read_file+0xd6/0xda SS:ESP 0068:ec4b9f50 [ 5606.445018] ---[ end trace 800d6d1bf01f2a42 ]--- .config is available on request Kernel is stock, no vendor/local modifications -- Lab tests show that use of micro$oft causes cancer in lab animals Got Gas??? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists