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TI-2024-37500 Aliases CVE-2024-56615GHSA-wrw9-rpg8-p3wx

bpf: fix OOB devmap writes when deleting elements

Priority LOW 36CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 9 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: fix OOB devmap writes when deleting elements Jordy reported issue against XSKMAP which also applies to DEVMAP - the index used for accessing map entry, due to being a signed integer, causes the OOB writes. Fix is simple as changing the type from int to u32, however, when compared to XSKMAP case, one more thing needs to be addressed. When map is released from system via dev_map_free(), we iterate through all of the entries and an iterator variable is also an int, which implies OOB accesses. Again, change it to be u32. Example splat below: [ 160.724676] BUG: unable to handle page fault for address: ffffc8fc2c001000 [ 160.731662] #PF: supervisor read access in kernel mode [ 160.736876] #PF: error_code(0x0000) - not-present page [ 160.742095] PGD 0 P4D 0 [ 160.744678] Oops: Oops: 0000 [#1] PREEMPT SMP [ 160.749106] CPU: 1 UID: 0 PID: 520 Comm: kworker/u145:12 Not tainted 6.12.0-rc1+ #487 [ 160.757050] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 [ 160.767642] Workqueue: events_unbound bpf_map_free_deferred [ 160.773308] RIP: 0010:dev_map_free+0x77/0x170 [ 160.777735] Code: 00 e8 fd 91 ed ff e8 b8 73 ed ff 41 83 7d 18 19 74 6e 41 8b 45 24 49 8b bd f8 00 00 00 31 db 85 c0 74 48 48 63 c3 48 8d 04 c7 <48> 8b 28 48 85 ed 74 30 48 8b 7d 18 48 85 ff 74 05 e8 b3 52 fa ff [ 160.796777] RSP: 0018:ffffc9000ee1fe38 EFLAGS: 00010202 [ 160.802086] RAX: ffffc8fc2c001000 RBX: 0000000080000000 RCX: 0000000000000024 [ 160.809331] RDX: 0000000000000000 RSI: 0000000000000024 RDI: ffffc9002c001000 [ 160.816576] RBP: 0000000000000000 R08: 0000000000000023 R09: 0000000000000001 [ 160.823823] R10: 0000000000000001 R11: 00000000000ee6b2 R12: dead000000000122 [ 160.831066] R13: ffff88810c928e00 R14: ffff8881002df405 R15: 0000000000000000 [ 160.838310] FS: 0000000000000000(0000) GS:ffff8897e0c40000(0000) knlGS:0000000000000000 [ 160.846528] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 160.852357] CR2: ffffc8fc2c001000 CR3: 0000000005c32006 CR4: 00000000007726f0 [ 160.859604] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 160.866847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 160.874092] PKRU: 55555554 [ 160.876847] Call Trace: [ 160.879338] <TASK> [ 160.881477] ? __die+0x20/0x60 [ 160.884586] ? page_fault_oops+0x15a/0x450 [ 160.888746] ? search_extable+0x22/0x30 [ 160.892647] ? search_bpf_extables+0x5f/0x80 [ 160.896988] ? exc_page_fault+0xa9/0x140 [ 160.900973] ? asm_exc_page_fault+0x22/0x30 [ 160.905232] ? dev_map_free+0x77/0x170 [ 160.909043] ? dev_map_free+0x58/0x170 [ 160.912857] bpf_map_free_deferred+0x51/0x90 [ 160.917196] process_one_work+0x142/0x370 [ 160.921272] worker_thread+0x29e/0x3b0 [ 160.925082] ? rescuer_thread+0x4b0/0x4b0 [ 160.929157] kthread+0xd4/0x110 [ 160.932355] ? kthread_park+0x80/0x80 [ 160.936079] ret_from_fork+0x2d/0x50 [ 160.943396] ? kthread_park+0x80/0x80 [ 160.950803] ret_from_fork_asm+0x11/0x20 [ 160.958482] </TASK>

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00257 17th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.287, 5.10.231, 5.15.174 +4Red Hat: 3 advisoriesRed Hat: 9 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.14 and later5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.66, 6.12.5, 6.13Patch availableCNA
  • Linux VendorLinux Affected 4.14 and later Fixed in 5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.66, 6.12.5, 6.13 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.14 to before 5.4.287; 5.5 to before 5.10.231; 5.11 to before 5.15.174; 5.16 to before 6.1.120; 6.2 to before 6.6.66; 6.7 to before 6.12.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*6.13 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.14 to before 5.4.287; 5.5 to before 5.10.231; 5.11 to before 5.15.174; 5.16 to before 6.1.120; 6.2 to before 6.6.66; 6.7 to before 6.12.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* Versions 6.13 rc1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.66, 6.12.5, 6.13

Red Hat 3 advisories

  • RHSA-2025:10547 Released 2025-07-08 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.122.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.122.1.el9_2, kernel-64k-devel-5.14.0-284.122.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.122.1.el9_2, kernel-5.14.0-284.122.1.el9_2, kernel-64k-5.14.0-284.122.1.el9_2 +29
  • RHSA-2025:10536 Released 2025-07-08 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.122.1.rt14.407.el9_2, kernel-rt-core-5.14.0-284.122.1.rt14.407.el9_2, kernel-rt-debug-5.14.0-284.122.1.rt14.407.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.122.1.rt14.407.el9_2, kernel-rt-core-5.14.0-284.122.1.rt14.407.el9_2, kernel-rt-debug-5.14.0-284.122.1.rt14.407.el9_2 +11
  • RHSA-2025:9584 Released 2025-06-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.74.1.el9_4, libperf-5.14.0-427.74.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.74.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.74.1.el9_4, kernel-64k-devel-5.14.0-427.74.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.74.1.el9_4, kernel-5.14.0-427.74.1.el9_4, kernel-64k-5.14.0-427.74.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.74.1.el9_4, kernel-rt-core-5.14.0-427.74.1.el9_4, kernel-rt-debug-5.14.0-427.74.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.74.1.el9_4, kernel-rt-core-5.14.0-427.74.1.el9_4, kernel-rt-debug-5.14.0-427.74.1.el9_4 +11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:9584
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:10547
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:9584
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:10547
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:9584
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:10536
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:9584
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:10536
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:9584
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-56615
  2. 2026-10-03 Alias added: GHSA-wrw9-rpg8-p3wx
  3. 2026-10-29 Affected versions changed · Red Hat

References

Patch 7

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences