跳转到帖子

Ubuntu: (CVE-2024-26902): linux-raspi-realtime vulnerability

recommended_posts

发布于
  • Members

Ubuntu: (CVE-2024-26902): linux-raspi-realtime vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/17/2024
Created
02/12/2025
Added
02/11/2025
Modified
02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: perf: RISCV: Fix panic on pmu overflow handler (1 << idx) of int is not desired when setting bits in unsigned long overflowed_ctrs, use BIT() instead. This panic happens when running 'perf record -e branches' on sophgo sg2042. [273.311852] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098 [273.320851] Oops [#1] [273.323179] Modules linked in: [273.326303] CPU: 0 PID: 1475 Comm: perf Not tainted 6.6.0-rc3+ #9 [273.332521] Hardware name: Sophgo Mango (DT) [273.336878] epc : riscv_pmu_ctr_get_width_mask+0x8/0x62 [273.342291]ra : pmu_sbi_ovf_handler+0x2e0/0x34e [273.347091] epc : ffffffff80aecd98 ra : ffffffff80aee056 sp : fffffff6e36928b0 [273.354454]gp : ffffffff821f82d0 tp : ffffffd90c353200 t0 : 0000002ade4f9978 [273.361815]t1 : 0000000000504d55 t2 : ffffffff8016cd8c s0 : fffffff6e3692a70 [273.369180]s1 : 0000000000000020 a0 : 0000000000000000 a1 : 00001a8e81800000 [273.376540]a2 : 0000003c00070198 a3 : 0000003c00db75a4 a4 : 0000000000000015 [273.383901]a5 : ffffffd7ff8804b0 a6 : 0000000000000015 a7 : 000000000000002a [273.391327]s2 : 000000000000ffff s3 : 0000000000000000 s4 : ffffffd7ff8803b0 [273.398773]s5 : 0000000000504d55 s6 : ffffffd905069800 s7 : ffffffff821fe210 [273.406139]s8 : 000000007fffffff s9 : ffffffd7ff8803b0 s10: ffffffd903f29098 [273.413660]s11: 0000000080000000 t3 : 0000000000000003 t4 : ffffffff8017a0ca [273.421022]t5 : ffffffff8023cfc2 t6 : ffffffd9040780e8 [273.426437] status: 0000000200000100 badaddr: 0000000000000098 cause: 000000000000000d [273.434512] [<ffffffff80aecd98>] riscv_pmu_ctr_get_width_mask+0x8/0x62 [273.441169] [<ffffffff80076bd8>] handle_percpu_devid_irq+0x98/0x1ee [273.447562] [<ffffffff80071158>] generic_handle_domain_irq+0x28/0x36 [273.454151] [<ffffffff8047a99a>] riscv_intc_irq+0x36/0x4e [273.459659] [<ffffffff80c944de>] handle_riscv_irq+0x4a/0x74 [273.465442] [<ffffffff80c94c48>] do_irq+0x62/0x92 [273.470360] Code: 0420 60a2 6402 5529 0141 8082 0013 0000 0013 0000 (6d5c) b783 [273.477921] ---[ end trace 0000000000000000 ]--- [273.482630] Kernel panic - not syncing: Fatal exception in interrupt

Solution(s)

  • ubuntu-upgrade-linux-raspi-realtime

References

  • https://attackerkb.com/topics/cve-2024-26902
  • CVE - 2024-26902
  • https://git.kernel.org/linus/34b567868777e9fd39ec5333969728a7f0cf179c
  • https://git.kernel.org/stable/c/34b567868777e9fd39ec5333969728a7f0cf179c
  • https://git.kernel.org/stable/c/3ede8e94de6b834b48b0643385e66363e7a04be9
  • https://git.kernel.org/stable/c/9f599ba3b9cc4bdb8ec1e3f0feddd41bf9d296d6
  • https://www.cve.org/CVERecord?id=CVE-2024-26902
  • 查看数 697
  • 已创建
  • 最后回复

参与讨论

你可立刻发布并稍后注册。 如果你有帐户,立刻登录发布帖子。
注意:你的帖子需要版主批准后才能看到。

游客
回帖…