发布于3月6日3月6日 Members SUSE: CVE-2021-47284: SUSE Linux Security Advisory Severity 4 CVSS (AV:L/AC:M/Au:N/C:P/I:P/A:P) Published 05/21/2024 Created 08/16/2024 Added 08/09/2024 Modified 08/09/2024 Description In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: netjet: Fix crash in nj_probe: 'nj_setup' in netjet.c might fail with -EIO and in this case 'card->irq' is initialized and is bigger than zero. A subsequent call to 'nj_release' will free the irq that has not been requested. Fix this bug by deleting the previous assignment to 'card->irq' and just keep the assignment before 'request_irq'. The KASAN's log reveals it: [3.354615 ] WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1826 free_irq+0x100/0x480 [3.355112 ] Modules linked in: [3.355310 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [3.355816 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [3.356552 ] RIP: 0010:free_irq+0x100/0x480 [3.356820 ] Code: 6e 08 74 6f 4d 89 f4 e8 5e ac 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 4f ac 09 00 8b 75 c8 48 c7 c7 78 c1 2e 85 e8 e0 cf f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 72 33 0b 03 48 8b 43 40 4c 8b a0 80 [3.358012 ] RSP: 0000:ffffc90000017b48 EFLAGS: 00010082 [3.358357 ] RAX: 0000000000000000 RBX: ffff888104dc8000 RCX: 0000000000000000 [3.358814 ] RDX: ffff8881003c8000 RSI: ffffffff8124a9e6 RDI: 00000000ffffffff [3.359272 ] RBP: ffffc90000017b88 R08: 0000000000000000 R09: 0000000000000000 [3.359732 ] R10: ffffc900000179f0 R11: 0000000000001d04 R12: 0000000000000000 [3.360195 ] R13: ffff888107dc6000 R14: ffff888107dc6928 R15: ffff888104dc80a8 [3.360652 ] FS:0000000000000000(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000 [3.361170 ] CS:0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [3.361538 ] CR2: 0000000000000000 CR3: 000000000582e000 CR4: 00000000000006f0 [3.362003 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [3.362175 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [3.362175 ] Call Trace: [3.362175 ]nj_release+0x51/0x1e0 [3.362175 ]nj_probe+0x450/0x950 [3.362175 ]? pci_device_remove+0x110/0x110 [3.362175 ]local_pci_probe+0x45/0xa0 [3.362175 ]pci_device_probe+0x12b/0x1d0 [3.362175 ]really_probe+0x2a9/0x610 [3.362175 ]driver_probe_device+0x90/0x1d0 [3.362175 ]? mutex_lock_nested+0x1b/0x20 [3.362175 ]device_driver_attach+0x68/0x70 [3.362175 ]__driver_attach+0x124/0x1b0 [3.362175 ]? device_driver_attach+0x70/0x70 [3.362175 ]bus_for_each_dev+0xbb/0x110 [3.362175 ]? rdinit_setup+0x45/0x45 [3.362175 ]driver_attach+0x27/0x30 [3.362175 ]bus_add_driver+0x1eb/0x2a0 [3.362175 ]driver_register+0xa9/0x180 [3.362175 ]__pci_register_driver+0x82/0x90 [3.362175 ]? w6692_init+0x38/0x38 [3.362175 ]nj_init+0x36/0x38 [3.362175 ]do_one_initcall+0x7f/0x3d0 [3.362175 ]? rdinit_setup+0x45/0x45 [3.362175 ]? rcu_read_lock_sched_held+0x4f/0x80 [3.362175 ]kernel_init_freeable+0x2aa/0x301 [3.362175 ]? rest_init+0x2c0/0x2c0 [3.362175 ]kernel_init+0x18/0x190 [3.362175 ]? rest_init+0x2c0/0x2c0 [3.362175 ]? rest_init+0x2c0/0x2c0 [3.362175 ]ret_from_fork+0x1f/0x30 [3.362175 ] Kernel panic - not syncing: panic_on_warn set ... [3.362175 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [3.362175 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [3.362175 ] Call Trace: [3.362175 ]dump_stack+0xba/0xf5 [3.362175 ]? free_irq+0x100/0x480 [3.362175 ]panic+0x15a/0x3f2 [3.362175 ]? __warn+0xf2/0x150 [3.362175 ]? free_irq+0x100/0x480 [3.362175 ]__warn+0x108/0x150 [3.362175 ]? free_irq+0x100/0x480 [3.362175 ]report_bug+0x119/0x1c0 [3.362175 ]handle_bug+0x3b/0x80 [3.362175 ]exc_invalid_op+0x18/0x70 [3.362175 ]asm_exc_invalid_op+0x12/0x20 [3.362175 ] RIP: 0010:free_irq+0x100 ---truncated--- Solution(s) suse-upgrade-kernel-64kb suse-upgrade-kernel-64kb-devel suse-upgrade-kernel-azure suse-upgrade-kernel-azure-base suse-upgrade-kernel-azure-devel suse-upgrade-kernel-default suse-upgrade-kernel-default-base suse-upgrade-kernel-default-devel suse-upgrade-kernel-default-extra suse-upgrade-kernel-default-man suse-upgrade-kernel-devel suse-upgrade-kernel-devel-azure suse-upgrade-kernel-docs suse-upgrade-kernel-macros suse-upgrade-kernel-obs-build suse-upgrade-kernel-preempt suse-upgrade-kernel-preempt-devel suse-upgrade-kernel-source suse-upgrade-kernel-source-azure suse-upgrade-kernel-syms suse-upgrade-kernel-syms-azure suse-upgrade-kernel-zfcpdump suse-upgrade-reiserfs-kmp-default References https://attackerkb.com/topics/cve-2021-47284 CVE - 2021-47284
