CVE-2026-89598

UNRATEDCVSS · not yet scoredTrending — 4 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

fbdev: ssd1307fb: defer I2C transfers from damage callbacks

The fbdev damage callbacks may run from fbcon while printk has disabled preemption. They currently update the display synchronously, which enters the sleeping I2C transfer path from atomic context.

A complete report from an RK3566 system follows:

[ 258.129004] watchdog: watchdog0: watchdog did not stop! [ 258.129067] BUG: scheduling while atomic: systemd/1/0x00000003 [ 258.129076] Modules linked in: algif_hash algif_skcipher af_alg bnep binfmt_misc lz4hc lz4 zram snd_soc_hdmi_codec brcmfmac_wcc hci_uart fb_ssd1306(C) fbtft(C) btqca btrtl btintel btsdio snd_soc_simple_card motorcomm pwm_fan snd_soc_simple_card_utils ssd130x_spi nls_iso8859_1 ssd130x btbcm drm_shmem_helper display_connector brcmfmac ssd1307fb brcmutil bluetooth cfg80211 rfkill snd_soc_rockchip_i2s_tdm snd_soc_rk817 hantro_vpu snd_soc_core snd_compress snd_pcm_dmaengine v4l2_vp9 snd_pcm v4l2_h264 rockchip_rga snd_timer rk_crypto2 spi_rockchip_sfc videobuf2_dma_contig snd sm3_generic v4l2_mem2mem videobuf2_dma_sg dwmac_rk sm3 soundcore videobuf2_memops videobuf2_v4l2 stmmac_platform dw_hdmi_cec videodev videobuf2_common dw_hdmi_i2s_audio stmmac rk817_charger pcs_xpcs mc cpufreq_dt sch_fq_codel ip_tables x_tables autofs4 [ 258.129215] Preemption disabled at: [ 258.129216] [] vprintk_emit+0x11c/0x340 [ 258.129234] CPU: 0 PID: 1 Comm: systemd Tainted: G C 6.6.0-rc5-rockchip-rk356x #4 [ 258.129239] Hardware name: Rockchip RK3566 OPi 3B (DT) [ 258.129243] Call trace: [ 258.129245] dump_backtrace+0xa0/0x128 [ 258.129252] show_stack+0x20/0x38 [ 258.129256] dump_stack_lvl+0x60/0xb0 [ 258.129265] dump_stack+0x18/0x28 [ 258.129269] __schedule_bug+0xa0/0xc8 [ 258.129274] __schedule+0x9ac/0xd30 [ 258.129279] schedule+0x60/0x100 [ 258.129282] schedule_timeout+0x194/0x338 [ 258.129289] rk3x_i2c_xfer_common.isra.0+0x384/0x498 [ 258.129296] rk3x_i2c_xfer+0x20/0x60 [ 258.129300] __i2c_transfer+0x194/0x648 [ 258.129308] i2c_transfer+0x9c/0x130 [ 258.129313] i2c_transfer_buffer_flags+0x64/0x98 [ 258.129318] ssd1307fb_update_rect+0x42c/0x560 [ssd1307fb] [ 258.129334] ssd1307fb_defio_imageblit+0x34/0x50 [ssd1307fb] [ 258.129343] soft_cursor+0x13c/0x210 [ 258.129350] bit_cursor+0x2dc/0x550 [ 258.129354] fbcon_cursor+0xec/0x108 [ 258.129359] hide_cursor+0x44/0xc8 [ 258.129365] vt_console_print+0x398/0x3b0 [ 258.129370] console_flush_all.isra.0+0x17c/0x410 [ 258.129377] console_unlock+0x4c/0x100 [ 258.129382] vprintk_emit+0x1c8/0x340 [ 258.129386] vprintk_default+0x40/0x58 [ 258.129389] vprintk+0xb8/0xd0 [ 258.129392] _printk+0x68/0x98 [ 258.129398] watchdog_release+0x170/0x230 [ 258.129404] __fput+0xbc/0x288 [ 258.129409] __fput_sync+0x58/0x70 [ 258.129413] __arm64_sys_close+0x40/0x90 [ 258.129419] invoke_syscall+0x4c/0x118 [ 258.129426] el0_svc_common.constprop.0+0x48/0xf0 [ 258.129432] do_el0_svc+0x24/0x38 [ 258.129437] el0_svc+0x48/0x100 [ 258.129443] el0t_64_sync_handler+0xc0/0xc8 [ 258.129448] el0t_64_sync+0x190/0x198 [ 258.573087] ------------[ cut here ]------------ [ 258.573098] DEBUG_LOCKS_WARN_ON(val > preempt_count()) [ 258.573111] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:5871 preempt_count_sub+0x9c/0x148 [ 258.573130] Modules linked in: algif_hash algif_skcipher af_alg bnep binfmt_misc lz4hc lz4 zram snd_soc_hdmi_codec brcmfmac_wcc hci_uart fb_ssd1306(C) fbtft(C) btqca btrtl btintel btsdio snd_soc_simple_card motorcomm pwm_fan snd_soc_simple_card_utils ssd130x_spi nls_iso8859_1 ssd130x btbcm drm_shmem_helper display_connector brcmfmac ssd1307fb brcmutil bluetooth cfg80211 rfkill snd_soc_rockchip_i2s_tdm snd_soc_rk817 hantro_vpu snd_soc_core snd_compress snd_pcm_dmaengine v4l2_vp ---truncated---

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
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EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 11, 2026

Last Modified

September 14, 2026

References (5)

Vendor Advisories for CVE-2026-89598(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 15× in last 7d / 53× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 59 is merged into the row it repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-12 14:48 UTCEG score recompute
  4. 2026-10-11 19:15 UTCEG score recompute
  5. 2026-10-11 16:32 UTCEG score recompute
  6. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  7. 2026-10-11 13:47 UTCEG score recompute
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-10 09:35 UTCVendor advisory
  10. 2026-10-10 09:35 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-10-07 12:56 UTCVendor advisory
  15. 2026-10-07 12:56 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-04 15:46 UTCVendor advisory
  20. 2026-10-04 15:46 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  21. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-01 19:07 UTCVendor advisory
  23. 2026-10-01 19:07 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  24. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-09-28 21:58 UTCEG score recompute
Show 33 more
  1. 2026-09-28 21:58 UTCVendor advisory
  2. 2026-09-28 21:58 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  3. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-09-26 01:19 UTCVendor advisory
  7. 2026-09-26 01:19 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  8. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-09-23 03:40 UTCVendor advisory
  11. 2026-09-23 03:40 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  12. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-09-20 07:00 UTCVendor advisory
  16. 2026-09-20 07:00 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  17. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-17 10:12 UTCVendor advisory
  20. 2026-09-17 10:12 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  21. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-14 13:32 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  25. 2026-09-14 13:28 UTCNVD update
  26. 2026-09-14 12:29 UTCEG score recompute
  27. 2026-09-14 12:29 UTCGHSA enrichmentGHSA-xvg2-4qx6-6h6p
  28. 2026-09-14 12:24 UTCMITRE cvelistV5
  29. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-09-11 20:36 UTCNVD update
  32. 2026-09-11 19:50 UTCEG score recompute
  33. 2026-09-11 19:49 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-89598?
CVE-2026-89598 is a vulnerability whose severity is not yet rated; its CVE record was published on September 11, 2026. In the Linux kernel, the following vulnerability has been resolved: fbdev: ssd1307fb: defer I2C transfers from damage callbacks The fbdev damage callbacks may run from fbcon while printk has disabled preemption. They currently update the display synchronously, which enters the sleeping I2C transfer…
When was the CVE record for CVE-2026-89598 published?
The CVE record for CVE-2026-89598 was published on September 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 14, 2026; the record at its source may have been updated since.
Is CVE-2026-89598 actively exploited?
CVE-2026-89598 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-89598?
A fix for CVE-2026-89598 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-89598 are linked in the Vendor Advisories panel on this page.

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