Package: src:linux Version: 4.19.235-1 Severity: critical Tags: upstream Justification: breaks the whole system
A recent upstream “stable” upgrade backported the removal of the qdisc_destroy() function (which, in itself, is questionable enough already and caused no small amount of fun) using qdisc_put() instead. However, qdisc_put() does not accept NULL pointers, causing oopses in several qdiscs that can be configured on a system. This breaks sudo (su works), networking and even deconfiguration is not possible, only /proc/sysrq-trigger makes it possible to recover. https://www.mail-archive.com/netdev@vger.kernel.org/msg314288.html fixes this but was not backported along. -- Package-specific info: ** Version: Linux version 4.19.0-20-amd64 (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.235-1 (2022-03-17) ** Command line: BOOT_IMAGE=/boot/vmlinuz-4.19.0-20-amd64 root=/dev/vda2 ro net.ifnames=0 nomodeset ** Not tainted ** Kernel log: Unable to read kernel log; any relevant messages should be attached ** Model information sys_vendor: QEMU product_name: Standard PC (i440FX + PIIX, 1996) product_version: pc-i440fx-2.8 chassis_vendor: QEMU chassis_version: pc-i440fx-2.8 bios_vendor: SeaBIOS bios_version: 1.14.0-2 ** Loaded modules: ipt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo nft_counter nft_chain_nat_ipv4 nf_nat_ipv4 xt_addrtype nft_compat xt_conntrack x_tables nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc nf_tables devlink nfnetlink overlay nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc loop kvm_intel ttm kvm drm_kms_helper irqbypass virtio_rng joydev drm evdev rng_core virtio_balloon serio_raw pcspkr button qemu_fw_cfg ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb crypto_simd cryptd glue_helper aes_x86_64 hid_generic usbhid hid virtio_net net_failover failover virtio_blk ata_generic ata_piix uhci_hcd libata ehci_hcd usbcore psmouse usb_common virtio_pci virtio_ring i2c_piix4 crc32c_intel scsi_mod virtio floppy ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [ISA Compatibility mode-only controller, supports bus mastering]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) Region 4: I/O ports at c0e0 [size=16] Kernel driver in use: ata_piix Kernel modules: ata_piix, ata_generic 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c040 [size=32] Kernel driver in use: uhci_hcd Kernel modules: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus Kernel modules: i2c_piix4 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Region 0: Memory at fc000000 (32-bit, prefetchable) [size=32M] Region 1: Memory at febd0000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at 000c0000 [disabled] [size=128K] Kernel modules: cirrusfb, cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Virtio network device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c060 [size=32] Region 1: Memory at febd1000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at fe000000 (64-bit, prefetchable) [size=16K] Expansion ROM at feb40000 [disabled] [size=256K] Capabilities: <access denied> Kernel driver in use: virtio-pci Kernel modules: virtio_pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Virtio block device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c000 [size=64] Region 1: Memory at febd2000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at fe004000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: virtio-pci Kernel modules: virtio_pci 00:05.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002] Subsystem: Red Hat, Inc Virtio memory balloon [1af4:0005] Physical Slot: 5 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c080 [size=32] Region 4: Memory at fe008000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: virtio-pci Kernel modules: virtio_pci 00:06.0 Unclassified device [00ff]: Red Hat, Inc Virtio RNG [1af4:1005] Subsystem: Red Hat, Inc Virtio RNG [1af4:0004] Physical Slot: 6 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c0a0 [size=32] Region 4: Memory at fe00c000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: virtio-pci Kernel modules: virtio_pci 00:07.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Virtio network device [1af4:0001] Physical Slot: 7 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c0c0 [size=32] Region 1: Memory at febd3000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at fe010000 (64-bit, prefetchable) [size=16K] Expansion ROM at feb80000 [disabled] [size=256K] Capabilities: <access denied> Kernel driver in use: virtio-pci Kernel modules: virtio_pci ** USB devices: not available -- System Information: Debian Release: 10.12 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-20-amd64 (SMP w/3 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/lksh Init: sysvinit (via /sbin/init) Versions of packages linux-image-4.19.0-20-amd64 depends on: ii initramfs-tools [linux-initramfs-tool] 0.133+deb10u1 ii kmod 26-1 ii linux-base 4.6 Versions of packages linux-image-4.19.0-20-amd64 recommends: pn apparmor <none> pn firmware-linux-free <none> Versions of packages linux-image-4.19.0-20-amd64 suggests: pn debian-kernel-handbook <none> ii grub-pc 2.02+dfsg1-20+deb10u4 pn linux-doc-4.19 <none> Versions of packages linux-image-4.19.0-20-amd64 is related to: pn firmware-amd-graphics <none> pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-cavium <none> pn firmware-intel-sound <none> pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> pn firmware-linux-nonfree <none> pn firmware-misc-nonfree <none> pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> pn firmware-realtek <none> pn firmware-samsung <none> pn firmware-siano <none> pn firmware-ti-connectivity <none> pn xen-hypervisor <none> -- no debconf information
