<p>Upgrade <code>AlmaLinux:9</code> <code>perf</code> to version 0:5.14.0-427.28.1.el9_4 or higher.<br>This issue was patched in <code>ALSA-2024:4928</code>.</p>

CVE-2024-35907 Affecting perf package, versions <0:5.14.0-427.28.1.el9_4

Threat Intelligence

0.05% (17^th percentile)

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Snyk ID SNYK-ALMALINUX9-PERF-8329447
published 4 Nov 2024
disclosed 31 Jul 2024

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Introduced: 31 Jul 2024

CVE-2024-35907 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 perf to version 0:5.14.0-427.28.1.el9_4 or higher.
This issue was patched in ALSA-2024:4928.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

mlxbf_gige: call request_irq() after NAPI initialized

The mlxbf_gige driver encounters a NULL pointer exception in mlxbf_gige_open() when kdump is enabled. The sequence to reproduce the exception is as follows: a) enable kdump b) trigger kdump via "echo c > /proc/sysrq-trigger" c) kdump kernel executes d) kdump kernel loads mlxbf_gige module e) the mlxbf_gige module runs its open() as the the "oob_net0" interface is brought up f) mlxbf_gige module will experience an exception during its open(), something like:

 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
 Mem abort info:
   ESR = 0x0000000086000004
   EC = 0x21: IABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
   FSC = 0x04: level 0 translation fault
 user pgtable: 4k pages, 48-bit VAs, pgdp=00000000e29a4000
 [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
 Internal error: Oops: 0000000086000004 [#1] SMP
 CPU: 0 PID: 812 Comm: NetworkManager Tainted: G           OE     5.15.0-1035-bluefield #37-Ubuntu
 Hardware name: https://www.mellanox.com BlueField-3 SmartNIC Main Card/BlueField-3 SmartNIC Main Card, BIOS 4.6.0.13024 Jan 19 2024
 pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : 0x0
 lr : __napi_poll+0x40/0x230
 sp : ffff800008003e00
 x29: ffff800008003e00 x28: 0000000000000000 x27: 00000000ffffffff
 x26: ffff000066027238 x25: ffff00007cedec00 x24: ffff800008003ec8
 x23: 000000000000012c x22: ffff800008003eb7 x21: 0000000000000000
 x20: 0000000000000001 x19: ffff000066027238 x18: 0000000000000000
 x17: ffff578fcb450000 x16: ffffa870b083c7c0 x15: 0000aaab010441d0
 x14: 0000000000000001 x13: 00726f7272655f65 x12: 6769675f6662786c
 x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa870b0842398
 x8 : 0000000000000004 x7 : fe5a48b9069706ea x6 : 17fdb11fc84ae0d2
 x5 : d94a82549d594f35 x4 : 0000000000000000 x3 : 0000000000400100
 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000066027238
 Call trace:
  0x0
  net_rx_action+0x178/0x360
  __do_softirq+0x15c/0x428
  __irq_exit_rcu+0xac/0xec
  irq_exit+0x18/0x2c
  handle_domain_irq+0x6c/0xa0
  gic_handle_irq+0xec/0x1b0
  call_on_irq_stack+0x20/0x2c
  do_interrupt_handler+0x5c/0x70
  el1_interrupt+0x30/0x50
  el1h_64_irq_handler+0x18/0x2c
  el1h_64_irq+0x7c/0x80
  __setup_irq+0x4c0/0x950
  request_threaded_irq+0xf4/0x1bc
  mlxbf_gige_request_irqs+0x68/0x110 [mlxbf_gige]
  mlxbf_gige_open+0x5c/0x170 [mlxbf_gige]
  __dev_open+0x100/0x220
  __dev_change_flags+0x16c/0x1f0
  dev_change_flags+0x2c/0x70
  do_setlink+0x220/0xa40
  __rtnl_newlink+0x56c/0x8a0
  rtnl_newlink+0x58/0x84
  rtnetlink_rcv_msg+0x138/0x3c4
  netlink_rcv_skb+0x64/0x130
  rtnetlink_rcv+0x20/0x30
  netlink_unicast+0x2ec/0x360
  netlink_sendmsg+0x278/0x490
  __sock_sendmsg+0x5c/0x6c
  ____sys_sendmsg+0x290/0x2d4
  ___sys_sendmsg+0x84/0xd0
  __sys_sendmsg+0x70/0xd0
  __arm64_sys_sendmsg+0x2c/0x40
  invoke_syscall+0x78/0x100
  el0_svc_common.constprop.0+0x54/0x184
  do_el0_svc+0x30/0xac
  el0_svc+0x48/0x160
  el0t_64_sync_handler+0xa4/0x12c
  el0t_64_sync+0x1a4/0x1a8
 Code: bad PC value
 ---[ end trace 7d1c3f3bf9d81885 ]---
 Kernel panic - not syncing: Oops: Fatal exception in interrupt
 Kernel Offset: 0x2870a7a00000 from 0xffff800008000000
 PHYS_OFFSET: 0x80000000
 CPU features: 0x0,000005c1,a3332a5a
 Memory Limit: none
 ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---

The exception happens because there is a pending RX interrupt before the call to request_irq(RX IRQ) executes. Then, the RX IRQ handler fires immediately after this request_irq() completes. The ---truncated---

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High

CVE-2024-35907 Affecting perf package, versions <0:5.14.0-427.28.1.el9_4

Severity

Based on AlmaLinux security rating