In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid panic once fallocation fails for pinfile syzbot reports a f2fs bug as below: ------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2746! CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0 RIP: 0010:getnewsegment fs/f2fs/segment.c:2746 [inline] RIP: 0010:newcurseg+0x1f52/0x1f70 fs/f2fs/segment.c:2876 Call Trace: <TASK> _allocatenewsegment+0x1ce/0x940 fs/f2fs/segment.c:3210 f2fsallocatenewsection fs/f2fs/segment.c:3224 [inline] f2fsallocatepinningsection+0xfa/0x4e0 fs/f2fs/segment.c:3238 f2fsexpandinodedata+0x696/0xca0 fs/f2fs/file.c:1830 f2fsfallocate+0x537/0xa10 fs/f2fs/file.c:1940 vfsfallocate+0x569/0x6e0 fs/open.c:327 dovfsioctl+0x258c/0x2e40 fs/ioctl.c:885 _dosysioctl fs/ioctl.c:904 [inline] _sesysioctl+0x80/0x170 fs/ioctl.c:892 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xf3/0x230 arch/x86/entry/common.c:83 entrySYSCALL64afterhwframe+0x77/0x7f Concurrent pinfile allocation may run out of free section, result in panic in getnewsegment(), let's expand pinsem lock coverage to include f2fsgc(), so that we can make sure to reclaim enough free space for following allocation. In addition, do below changes to enhance error path handling: - call f2fsbugon() only in non-pinfile allocation path in getnewsegment(). - call resetcursegfields() to reset all fields of curseg in newcurseg()
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1005.5", "binary_name": "linux-buildinfo-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-headers-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-image-unsigned-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-image-unsigned-6.14.0-1005-oem-dbgsym" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-ipu6-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-ipu7-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-iwlwifi-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-usbio-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-modules-vision-6.14.0-1005-oem" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-oem-6.14-headers-6.14.0-1005" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-oem-6.14-tools-6.14.0-1005" }, { "binary_version": "6.14.0-1005.5", "binary_name": "linux-tools-6.14.0-1005-oem" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "7.6.0+6.14.0-22.22", "binary_name": "bpftool" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-bpf-dev" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-buildinfo-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-buildinfo-6.14.0-22-generic-64k" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-cloud-tools-6.14.0-22" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-cloud-tools-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-cloud-tools-common" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-doc" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-headers-6.14.0-22" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-headers-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-headers-6.14.0-22-generic-64k" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-6.14.0-22-generic-dbgsym" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-unsigned-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-unsigned-6.14.0-22-generic-64k" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-unsigned-6.14.0-22-generic-64k-dbgsym" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-image-unsigned-6.14.0-22-generic-dbgsym" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-lib-rust-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-libc-dev" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-6.14.0-22-generic-64k" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-extra-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-ipu6-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-ipu7-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-iwlwifi-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-usbio-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-modules-vision-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-perf" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-source-6.14.0" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-tools-6.14.0-22" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-tools-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-tools-6.14.0-22-generic-64k" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-tools-common" }, { "binary_version": "6.14.0-22.22", "binary_name": "linux-tools-host" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1007.7", "binary_name": "linux-azure-cloud-tools-6.14.0-1007" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-azure-headers-6.14.0-1007" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-azure-tools-6.14.0-1007" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-buildinfo-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-cloud-tools-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-headers-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-image-unsigned-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-image-unsigned-6.14.0-1007-azure-dbgsym" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-modules-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-modules-extra-6.14.0-1007-azure" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-tools-6.14.0-1007-azure" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1008.8", "binary_name": "linux-buildinfo-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-buildinfo-6.14.0-1008-gcp-64k" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-gcp-headers-6.14.0-1008" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-gcp-tools-6.14.0-1008" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-headers-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-headers-6.14.0-1008-gcp-64k" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-image-unsigned-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-image-unsigned-6.14.0-1008-gcp-64k" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-image-unsigned-6.14.0-1008-gcp-64k-dbgsym" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-image-unsigned-6.14.0-1008-gcp-dbgsym" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-modules-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-modules-6.14.0-1008-gcp-64k" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-modules-extra-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-modules-extra-6.14.0-1008-gcp-64k" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-tools-6.14.0-1008-gcp" }, { "binary_version": "6.14.0-1008.8", "binary_name": "linux-tools-6.14.0-1008-gcp-64k" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1007.7", "binary_name": "linux-buildinfo-6.14.0-1007-raspi" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-headers-6.14.0-1007-raspi" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-image-6.14.0-1007-raspi" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-image-6.14.0-1007-raspi-dbgsym" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-modules-6.14.0-1007-raspi" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-raspi-headers-6.14.0-1007" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-raspi-tools-6.14.0-1007" }, { "binary_version": "6.14.0-1007.7", "binary_name": "linux-tools-6.14.0-1007-raspi" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1004.4", "binary_name": "linux-buildinfo-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-cloud-tools-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-headers-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-image-unsigned-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-image-unsigned-6.14.0-1004-realtime-dbgsym" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-modules-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-modules-extra-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-modules-iwlwifi-6.14.0-1004-realtime" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-realtime-cloud-tools-6.14.0-1004" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-realtime-headers-6.14.0-1004" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-realtime-tools-6.14.0-1004" }, { "binary_version": "6.14.0-1004.4", "binary_name": "linux-tools-6.14.0-1004-realtime" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-buildinfo-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-headers-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-image-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-image-6.14.0-22-generic-dbgsym" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-modules-6.14.0-22-generic" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-riscv-headers-6.14.0-22" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-riscv-tools-6.14.0-22" }, { "binary_version": "6.14.0-22.22.1", "binary_name": "linux-tools-6.14.0-22-generic" } ] }