发布于3月6日3月6日 Members Ubuntu: (CVE-2023-52797): linux-nvidia-6.5 vulnerability Severity 4 CVSS (AV:L/AC:M/Au:N/C:P/I:P/A:P) Published 05/21/2024 Created 11/21/2024 Added 11/19/2024 Modified 11/19/2024 Description In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check find_first_bit() return value We must check the return value of find_first_bit() before using the return value as an index array since it happens to overflow the array and then panic: [107.318430] Kernel BUG [#1] [107.319434] CPU: 3 PID: 1238 Comm: kill Tainted: GE6.6.0-rc6ubuntu-defconfig #2 [107.319465] Hardware name: riscv-virtio,qemu (DT) [107.319551] epc : pmu_sbi_ovf_handler+0x3a4/0x3ae [107.319840]ra : pmu_sbi_ovf_handler+0x52/0x3ae [107.319868] epc : ffffffff80a0a77c ra : ffffffff80a0a42a sp : ffffaf83fecda350 [107.319884]gp : ffffffff823961a8 tp : ffffaf8083db1dc0 t0 : ffffaf83fecda480 [107.319899]t1 : ffffffff80cafe62 t2 : 000000000000ff00 s0 : ffffaf83fecda520 [107.319921]s1 : ffffaf83fecda380 a0 : 00000018fca29df0 a1 : ffffffffffffffff [107.319936]a2 : 0000000001073734 a3 : 0000000000000004 a4 : 0000000000000000 [107.319951]a5 : 0000000000000040 a6 : 000000001d1c8774 a7 : 0000000000504d55 [107.319965]s2 : ffffffff82451f10 s3 : ffffffff82724e70 s4 : 000000000000003f [107.319980]s5 : 0000000000000011 s6 : ffffaf8083db27c0 s7 : 0000000000000000 [107.319995]s8 : 0000000000000001 s9 : 00007fffb45d6558 s10: 00007fffb45d81a0 [107.320009]s11: ffffaf7ffff60000 t3 : 0000000000000004 t4 : 0000000000000000 [107.320023]t5 : ffffaf7f80000000 t6 : ffffaf8000000000 [107.320037] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003 [107.320081] [<ffffffff80a0a77c>] pmu_sbi_ovf_handler+0x3a4/0x3ae [107.320112] [<ffffffff800b42d0>] handle_percpu_devid_irq+0x9e/0x1a0 [107.320131] [<ffffffff800ad92c>] generic_handle_domain_irq+0x28/0x36 [107.320148] [<ffffffff8065f9f8>] riscv_intc_irq+0x36/0x4e [107.320166] [<ffffffff80caf4a0>] handle_riscv_irq+0x54/0x86 [107.320189] [<ffffffff80cb0036>] do_irq+0x64/0x96 [107.320271] Code: 85a6 855e b097 ff7f 80e7 9220 b709 9002 4501 bbd9 (9002) 6097 [107.320585] ---[ end trace 0000000000000000 ]--- [107.320704] Kernel panic - not syncing: Fatal exception in interrupt [107.320775] SMP: stopping secondary CPUs [107.321219] Kernel Offset: 0x0 from 0xffffffff80000000 [107.333051] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- Solution(s) ubuntu-upgrade-linux-nvidia-6-5 References https://attackerkb.com/topics/cve-2023-52797 CVE - 2023-52797 https://git.kernel.org/linus/c6e316ac05532febb0c966fa9b55f5258ed037be https://git.kernel.org/stable/c/2c86b24095fcf72cf51bc72d12e4350163b4e11d https://git.kernel.org/stable/c/45a0de41ec383c8b7c6d442734ba3852dd2fc4a7 https://git.kernel.org/stable/c/c6e316ac05532febb0c966fa9b55f5258ed037be https://www.cve.org/CVERecord?id=CVE-2023-52797
