CVE-2024-26902

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