| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcm_loop: Drain commands in target_reset handler
tcm_loop_target_reset() violates the SCSI EH contract: it returns SUCCESS
without draining any in-flight commands. The SCSI EH documentation
(scsi_eh.rst) requires that when a reset handler returns SUCCESS the driver
has made lower layers "forget about timed out scmds" and is ready for new
commands. Every other SCSI LLD (virtio_scsi, mpt3sas, ipr, scsi_debug,
mpi3mr) enforces this by draining or completing outstanding commands before
returning SUCCESS.
Because tcm_loop_target_reset() doesn't drain, the SCSI EH reuses in-flight
scsi_cmnd structures for recovery commands (e.g. TUR) while the target core
still has async completion work queued for the old se_cmd. The memset in
queuecommand zeroes se_lun and lun_ref_active, causing
transport_lun_remove_cmd() to skip its percpu_ref_put(). The leaked LUN
reference prevents transport_clear_lun_ref() from completing, hanging
configfs LUN unlink forever in D-state:
INFO: task rm:264 blocked for more than 122 seconds.
rm D 0 264 258 0x00004000
Call Trace:
__schedule+0x3d0/0x8e0
schedule+0x36/0xf0
transport_clear_lun_ref+0x78/0x90 [target_core_mod]
core_tpg_remove_lun+0x28/0xb0 [target_core_mod]
target_fabric_port_unlink+0x50/0x60 [target_core_mod]
configfs_unlink+0x156/0x1f0 [configfs]
vfs_unlink+0x109/0x290
do_unlinkat+0x1d5/0x2d0
Fix this by making tcm_loop_target_reset() actually drain commands:
1. Issue TMR_LUN_RESET via tcm_loop_issue_tmr() to drain all commands that
the target core knows about (those not yet CMD_T_COMPLETE).
2. Use blk_mq_tagset_busy_iter() to iterate all started requests and
flush_work() on each se_cmd — this drains any deferred completion work
for commands that already had CMD_T_COMPLETE set before the TMR (which
the TMR skips via __target_check_io_state()). This is the same pattern
used by mpi3mr, scsi_debug, and libsas to drain outstanding commands
during reset. |
| The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option. |
| AFP Client in Apple Mac OS X 10.5.8 allows remote AFP servers to execute arbitrary code or cause a denial of service (memory corruption and system crash) via unspecified vectors. |
| Screen Sharing in Apple Mac OS X 10.5.8 allows remote VNC servers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors. |
| Microsoft Internet Explorer 5.01, 6, and 7 accesses uninitialized memory, which allows remote attackers to cause a denial of service (crash) and execute arbitrary code via unknown vectors, a different vulnerability than CVE-2008-2254, aka "HTML Object Memory Corruption Vulnerability." |
| The LAN game feature in Carom3D 5.06 allows remote authenticated users to cause a denial of service (application hang) via a crafted HTTP request to TCP port 28012. |
| The TrendMicro Activity Monitor Module (tmactmon.sys) 2.52.0.1002 in Trend Micro Internet Pro 2008 and 2009, and Security Pro 2008 and 2009, allows local users to gain privileges via a crafted IRP in a METHOD_NEITHER IOCTL request to \Device\tmactmon that overwrites memory. |
| The Research In Motion (RIM) BlackBerry 8800 allows remote attackers to cause a denial of service (memory consumption and browser crash) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692. |
| The js_watch_set function in js/src/jsdbgapi.cpp in the JavaScript engine in Mozilla Firefox before 3.0.12 allows remote attackers to cause a denial of service (assertion failure and application exit) or possibly execute arbitrary code via a crafted .js file, related to a "memory safety bug." NOTE: this was originally reported as affecting versions before 3.0.13. |
| Memory leak in Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 8.0 before 8.0(4) and 8.1 before 8.1(2) allows remote attackers to cause a denial of service (memory consumption) via an unspecified sequence of packets, related to the "initialization code for the hardware crypto accelerator." |
| mm/mmap.c in the hugetlb kernel, when run on PowerPC systems, does not prevent stack expansion from entering into reserved kernel page memory, which allows local users to cause a denial of service (OOPS) via unspecified vectors. |
| Multiple memory leaks in the (1) IP and (2) IPv6 multicast implementation in the kernel in Sun Solaris 10, and OpenSolaris snv_67 through snv_93, allow local users to cause a denial of service (memory consumption) via vectors related to the association of (a) DL_ENABMULTI_REQ and (b) DL_DISABMULTI_REQ messages with ARP messages. |
| The drm/i915 component in the Linux kernel before 2.6.22.2, when used with i965G and later chipsets, allows local users with access to an X11 session and Direct Rendering Manager (DRM) to write to arbitrary memory locations and gain privileges via a crafted batchbuffer. |
| Mozilla Firefox 3.0.1 and earlier allows remote attackers to cause a denial of service (browser hang) by calling the window.print function in a loop, aka a "printing DoS attack," possibly a related issue to CVE-2009-0821. |
| The uncompress_buffer function in src/server/simple_wml.cpp in Wesnoth before r33069 allows remote attackers to cause a denial of service via a large compressed WML document. |
| Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 allow attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2009-2996. |
| XM Easy Personal FTP Server 5.2.1 and earlier allows remote authenticated users to cause a denial of service via a long argument to the NLST command, possibly involving the -al flags. |
| Cisco Adaptive Security Appliance (ASA) and Cisco PIX security appliance 7.2.x before 7.2(3)2 and 8.0.x before 8.0(2)17 allows remote attackers to cause a denial of service (device reload) via a port scan against TCP port 443 on the device. |
| Stack consumption vulnerability in libclamav/special.c in ClamAV before 0.94.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted JPEG file, related to the cli_check_jpeg_exploit, jpeg_check_photoshop, and jpeg_check_photoshop_8bim functions. |
| Microsoft Exchange 2000 Server SP3, Exchange Server 2003 SP2, and Exchange Server 2007 SP1 do not properly interpret Transport Neutral Encapsulation (TNEF) properties, which allows remote attackers to execute arbitrary code via a crafted TNEF message, aka "Memory Corruption Vulnerability." |
